EBK PHYSICS FOR SCIENTISTS & ENGINEERS
5th Edition
ISBN: 9780134296074
Author: GIANCOLI
Publisher: VST
expand_more
expand_more
format_list_bulleted
Question
Chapter 9.8, Problem 1GE
To determine
The motion of the diver’s center of mass.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
Riders in an amusement park ride shaped like a Viking ship hung from a large pivot are rotated back and forth like a rigid pendulum. Sometime near the middle of the ride, the ship is momentarily motionless at the top of its circular arc. The ship then swings down under the influence of gravity.
(a)
Assuming negligible friction, find the speed (in m/s) of the riders at the bottom of its arc, given the system's center of mass travels in an arc having a radius of 16.0 m and the riders are near the center of mass. (Assume the top of the circular arc is when the pendulum arm is horizontal. You may need to use energy methods from the next chapter.)
(b)
What is the centripetal acceleration (in m/s2) at the bottom of the arc?
In the figure, the driver of a car on a horizontal road makes an emergency stop by applying the brakes so that all four wheels lock and
skid along the road. The coefficient of kinetic friction between tires and road is 0.43. The separation between the front and rear axles
is L = 3.6 m, and the center of mass of the car is located at distance d = 2.0 m behind the front axle and distance h = 0.86 m above the
road. The car weighs 12 kN. Find the magnitude of (a) the braking acceleration of the car, (b) the normal force on each rear wheel, (c)
the normal force on each front wheel, (d) the braking force on each rear wheel, and (e) the braking force on each front wheel. (Hint:
Although the car is not in translational equilibrium, it is in rotational equilibrium.)
(a) Number
(b) Number
Hi
Units
Units
(c) Number
Units
(d) Number
Units
(e) Number
Units
>
>
In the figure, the driver of a car on a horizontal road makes an emergency stop by applying the brakes so that all four wheels lock and
skid along the road. The coefficient of kinetic friction between tires and road is 0.47. The separation between the front and rear axles
is L = 4.1 m, and the center of mass of the car is located at distance d = 2.3 m behind the front axle and distance h = 0.63 m above the
road. The car weighs 11 kN. Find the magnitude of (a) the braking acceleration of the car, (b) the normal force on each rear wheel, (c)
the normal force on each front wheel, (d) the braking force on each rear wheel, and (e) the braking force on each front wheel. (Hint:
Although the car is not in translational equilibrium, it is in rotational equilibrium.)
(a) Number
i
Units
(b) Number
Units
(c) Number
i
Units
(d) Number
i
Units
(e) Number
i
Units
>
>
>
>
Chapter 9 Solutions
EBK PHYSICS FOR SCIENTISTS & ENGINEERS
Ch. 9.1 - Prob. 1AECh. 9.1 - Light carries momentum, so if a light beam strikes...Ch. 9.2 - In Example 93, what result would you get if (a)...Ch. 9.2 - Prob. 1DECh. 9.2 - Return to the Chapter-Opening Questions, page 214,...Ch. 9.8 - Calculate the CM of the three people in Example...Ch. 9.8 - Prob. 1GECh. 9.9 - A woman stands up in a rowboat and walks from one...Ch. 9 - We claim that momentum is conserved. Yet most...Ch. 9 - A light object and a heavy object have the same...
Ch. 9 - When a person jumps from a tree to the ground,...Ch. 9 - Prob. 4QCh. 9 - Explain, on the basis of conservation of momentum,...Ch. 9 - Prob. 6QCh. 9 - If a falling ball were to make a perfectly elastic...Ch. 9 - Prob. 8QCh. 9 - It is said that in ancient times a rich man with a...Ch. 9 - The speed of a tennis ball on the return of a...Ch. 9 - Is it possible for an object to receive a larger...Ch. 9 - How could a force give zero impulse over a nonzero...Ch. 9 - In a collision between two cars, which would you...Ch. 9 - Prob. 14QCh. 9 - Prob. 15QCh. 9 - At a hydroelectric power plant, water is directed...Ch. 9 - A squash hall hits a wall at a 45 angle as shown...Ch. 9 - Prob. 18QCh. 9 - Why can a batter hit a pitched baseball farther...Ch. 9 - If a 20-passenger plane is not full, sometimes...Ch. 9 - Prob. 21QCh. 9 - Why is the CM of a 1-m length of pipe at its...Ch. 9 - Describe an analytic way of determining the CM of...Ch. 9 - Prob. 24QCh. 9 - Bob and Jim decide to play tug-of-war on a...Ch. 9 - Prob. 26QCh. 9 - Prob. 27QCh. 9 - Prob. 28QCh. 9 - Prob. 29QCh. 9 - Prob. 30QCh. 9 - At a carnival game you try to knock over a heavy...Ch. 9 - Prob. 1MCQCh. 9 - Prob. 3MCQCh. 9 - Prob. 4MCQCh. 9 - Prob. 5MCQCh. 9 - Prob. 6MCQCh. 9 - Prob. 7MCQCh. 9 - Prob. 8MCQCh. 9 - Prob. 9MCQCh. 9 - Prob. 10MCQCh. 9 - Prob. 11MCQCh. 9 - Prob. 12MCQCh. 9 - Prob. 13MCQCh. 9 - Prob. 1PCh. 9 - Prob. 2PCh. 9 - Prob. 3PCh. 9 - Prob. 4PCh. 9 - Prob. 5PCh. 9 - Prob. 6PCh. 9 - Prob. 7PCh. 9 - Prob. 8PCh. 9 - Prob. 9PCh. 9 - Prob. 10PCh. 9 - Prob. 11PCh. 9 - Prob. 13PCh. 9 - Prob. 14PCh. 9 - Prob. 15PCh. 9 - Prob. 16PCh. 9 - Prob. 17PCh. 9 - Prob. 18PCh. 9 - Prob. 19PCh. 9 - Prob. 20PCh. 9 - Prob. 21PCh. 9 - Prob. 22PCh. 9 - (II) Suppose the force acting on a tennis hall...Ch. 9 - (II) The force on a bullet is given by the formula...Ch. 9 - (II) (a) A molecule of mass m and speed v strikes...Ch. 9 - Prob. 26PCh. 9 - Prob. 27PCh. 9 - Prob. 28PCh. 9 - Prob. 29PCh. 9 - Prob. 30PCh. 9 - Prob. 31PCh. 9 - Prob. 32PCh. 9 - Prob. 33PCh. 9 - Prob. 34PCh. 9 - Prob. 35PCh. 9 - Prob. 36PCh. 9 - (I) In a ballistic pendulum experiment, projectile...Ch. 9 - Prob. 38PCh. 9 - Prob. 39PCh. 9 - Prob. 40PCh. 9 - Prob. 41PCh. 9 - Prob. 42PCh. 9 - Prob. 43PCh. 9 - Prob. 44PCh. 9 - Prob. 45PCh. 9 - Prob. 46PCh. 9 - Prob. 47PCh. 9 - Prob. 48PCh. 9 - Prob. 49PCh. 9 - (II) A neutron collides elastically with a helium...Ch. 9 - Prob. 51PCh. 9 - (III) A neon atom (m = 20.0 u) makes a perfectly...Ch. 9 - Prob. 53PCh. 9 - (I) The distance between a carbon atom (m = 12 u)...Ch. 9 - Prob. 55PCh. 9 - Prob. 56PCh. 9 - (II) Three cubes, of side l0,2l0, and 3l0 are...Ch. 9 - Prob. 58PCh. 9 - Prob. 59PCh. 9 - Prob. 60PCh. 9 - Prob. 61PCh. 9 - Prob. 62PCh. 9 - Prob. 63PCh. 9 - (III) Determine the CM of a uniform pyramid that...Ch. 9 - (II) The masses of the Earth and Moon are 5.98 ...Ch. 9 - Prob. 66PCh. 9 - Prob. 67PCh. 9 - Prob. 68PCh. 9 - Prob. 69PCh. 9 - Prob. 70PCh. 9 - Prob. 71PCh. 9 - Prob. 72PCh. 9 - Prob. 73PCh. 9 - Prob. 74PCh. 9 - Prob. 76PCh. 9 - Prob. 77GPCh. 9 - Prob. 78GPCh. 9 - Prob. 79GPCh. 9 - Prob. 80GPCh. 9 - Prob. 81GPCh. 9 - Prob. 82GPCh. 9 - Prob. 83GPCh. 9 - Prob. 84GPCh. 9 - Prob. 85GPCh. 9 - Prob. 86GPCh. 9 - Prob. 88GPCh. 9 - Prob. 92GPCh. 9 - Prob. 94GPCh. 9 - Prob. 95GPCh. 9 - Prob. 96GPCh. 9 - Prob. 97GPCh. 9 - A massless spring with spring constant k is placed...Ch. 9 - Prob. 99GPCh. 9 - The gravitational slingshot effect. Figure 955...Ch. 9 - Prob. 101GPCh. 9 - Prob. 102GPCh. 9 - Prob. 103GPCh. 9 - Prob. 104GP
Knowledge Booster
Similar questions
- In the figure, the driver of a car on a horizontal road makes an emergency stop by applying the brakes so that all four wheels lock and skid along the road. The coefficient of kinetic friction between tires and road is 0.49. The separation between the front and rear axles is L = 4.2 m, and the center of mass of the car is located at distance d = 1.9 m behind the front axle and distance h = 1.2 m above the road. The car weighs 12 kN. Find the magnitude of (a) the braking acceleration of the car, (b) the normal force on each rear wheel, (c) the normal force on each front wheel, (d) the braking force on each rear wheel, and (e) the braking force on each front wheel. (Hint: Although the car is not in translational equilibrium, it is in rotational equilibrium.) L.arrow_forwardThe linear mass density of a thin rod is given by p = cVx, where c is a constant with appropriate units and x is the distance measured from the origin. If the rod is of length L, find (a) the center of mass of the rod with respect to origin. (b) the moment of inertia about an axis parallel to the y-axis and passing through the origin of the rod as shown in the figure. yarrow_forwardA horizontal circular platform rotates counterclockwise about its axis at the rate of 0.897 rad/s. You, with a mass of 74.1 kg. walk clockwise around the platform along its edge at the speed of 1.15 m/s with respect to the platform. Your 20.3 kg poodle also walks clockwise around the platform, but along a circle at half the platform's radius and at half your linear speed with respect to the platform. Your 17.3 kg mutt, on the other hand, sits still on the platform at a position that is 3/4 of the platform's radius from the center. Model the platform as a uniform disk with mass 92.7 kg and radius 1.99 m. Calculate the total angular momentum Lot of the system. Lot 2 kg-m²/sarrow_forward
- In a judo foot-sweep move, you sweep your opponent's left foot out from under him while pulling on his gi (uniform) toward that side. As a result, your opponent rotates around his right foot and onto the mat. The figure shows a simplified diagram of your opponent as you face him, with his left foot swept out. The rotational axis is through point O. The gravitational force Fg on him effectively acts at his center of mass, which is a horizontal distance d = 21 cm from point O. His mass is 73 kg, and his rotational inertia about point O is 65 kg.m². What is the magnitude of his initial angular acceleration about point O if your pull Fa on his gi is (a) negligible and (b) horizontal with a magnitude of 300 N and applied at height h = 1.4 m? Assume free-fall acceleration to be equal to 9.81 m/s². (a) Number i Units (b) Number Units com F >arrow_forwardA horizontal circular platform rotates counterclockwise about its axis at the rate of 0.893 rad/s. You, with a mass of 74.5 kg, walk clockwise around the platform along its edge at the speed of 1.09 m/s with respect to the platform. Your 20.1-kg poodle also walks clockwise around the platform, but along a circle at half the platform\'s radius and at half your linear speed with respect to the platform. Your 18.7-kg mutt, on the other hand, sits still on the platform at a position that is 3/4 of the platform\'s radius from the center. Model the platform as a uniform disk with mass 91.9 kg and radius 1.87 m. Calculate the total angular momentum of the system.arrow_forwardA bicyclist tilts their bicycle in order to make a circular turn of radius r = 49 m while traveling at a speed v = 10.8 m/s. The total force exerted on the bicycle wheels by the ground (which is a combination of normal force and static friction - hopefully less than maximum!) just so happens to be directed along the same angle as the bicycle. The total mass of the bicyclist and their bicycle is m = 90.8 kg.Find the angle from the vertical that the bicylist must titlt their bicycle.arrow_forward
- In 1980, over San Francisco Bay, a large yo-yo was released from a crane. The 116 kg yo-yo consisted of two uniform disks of radius 32 cm connected by an axle of radius 3.2 cm.What was the magnitude of the acceleration of the yo-yo during (a) its fall and (b) its rise? (c) What was the tension in the cord on which it rolled? (d) Was that tension near the cord’s limit of 52 kN? Suppose you build a scaled-up version of the yo-yo (same shape and materials but larger). (e) Will the magnitude of your yo-yo’s acceleration as it falls be greater than, less than, or the same as that of the San Francisco yo-yo? (f) How about the tension in the cord?arrow_forwardA 60.0-kg person is standing on the west edge of a horizontal circular game that has amoment of inertia of 500 kg · m² and a radius of 2.00 m. the game is initially idle andit is free to turn around a vertical axis without friction through its center. After theperson begins to walk around the edge in a clockwise direction (viewed fromabove the system) with a constant speed of 1.50 m / s relative to the Earth. a) Considerthe person-game system while the movement begins. Does the mechanical energy of the system is preserved? Is the momentum of the system conserved? The amount of movementangular system is conserved? b) In what direction and with what angular speed does thegame? c) How much chemical energy does the person's body convert into mechanical energyas the person gets himself and the turntable in motion?arrow_forward2. A skateboarder with his board can be modeled as a particle of mass 76.0 kg, located at his center of mass 0.500 m above the ground. As shown in figure, the skateboarder starts from rest in a crouching position at one lip of a cylinder of radius 6.80 m with its axis horizontal. On his descent, the skateboarder moves without friction and maintains his crouch so that his center of mass moves through one quarter of a circle. Find his speed at the bottom of the half-pipe (point B). Answer: VB 11.22 m/s Solutionarrow_forward
- Consider an F-16 in a steady level trim at 250 m/s. At this flight condition, the pilots changes the elevator angle which provides an additional force on the tail of AF = 3 kN. The tail is located at a distance d = 5.9 m from the center of mass of the plane. Assume the mass of the F-16 to be 15,000 kg and the pitch moment of inertia about the center of mass to be 275,000 kg.m². Calculate the magnitude of angular acceleration in rad/s². c.g. d ΔFarrow_forwardA large turntable with radius 6.00 m rotates about a fixedvertical axis, making one revolution in 8.00 s. The moment of inertia ofthe turntable about this axis is 1200 kg . m2. You stand, barefooted, atthe rim of the turntable and very slowly walk toward the center, along aradial line painted on the surface of the turntable. Your mass is 70.0 kg.Since the radius of the turntable is large, it is a good approximation totreat yourself as a point mass. Assume that you can maintain your balanceby adjusting the positions of your feet. You find that you can reacha point 3.00 m from the center of the turntable before your feet beginto slip. What is the coefficient of static friction between the bottoms ofyour feet and the surface of the turntable?arrow_forwardThe 100 kg sphere A is released from rest at an angle of α from the vertical, and hits the 10 kg block B (initially at rest), causing block B to have an initial velocity of 5 m/s as it enters the circular ramp (radius = 5 m) and stop temporarily at a final height h. The coefficient of restitution between sphere A and the block B is 0.6. Assume all surfaces are frictionless. Also assume direct impact between A and B. What is the velocity of A just before it hits block B? Choices:2.94 m/s11.25 m/s5.00 m/s3.44 m/sarrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Glencoe Physics: Principles and Problems, Student...PhysicsISBN:9780078807213Author:Paul W. ZitzewitzPublisher:Glencoe/McGraw-Hill
University Physics Volume 1PhysicsISBN:9781938168277Author:William Moebs, Samuel J. Ling, Jeff SannyPublisher:OpenStax - Rice University
Glencoe Physics: Principles and Problems, Student...
Physics
ISBN:9780078807213
Author:Paul W. Zitzewitz
Publisher:Glencoe/McGraw-Hill
University Physics Volume 1
Physics
ISBN:9781938168277
Author:William Moebs, Samuel J. Ling, Jeff Sanny
Publisher:OpenStax - Rice University