University Physics Volume 1
18th Edition
ISBN: 9781938168277
Author: William Moebs, Samuel J. Ling, Jeff Sanny
Publisher: OpenStax - Rice University
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Textbook Question
Chapter 6, Problem 30P
After a mishap, a 76.0-kg circus performer clings to a trapeze, which is being pulled to the side by another circus artist, as shown here. Calculate the tension in the two ropes If the person is momentarily motionless. Include a free- body diagram in your solution.
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Consider the figure shown below. You are lowering two boxes,one on top of the other, down a ramp by pulling on a rope parallel to thesurface of the ramp. Both blocks move with a constant velocity of 15.0 [ m s]. The coefficient of kinetic friction between the ramp and the lower boxare 0.444 and the coefficient of static friction between the two boxes is0.800. a. Draw the Free-Body diagram of both blocks. Set the x-axis parallel tothe ramp. b. What are the magnitude and direction of the frictional force on the upper box? c. What is the magnitude of the applied force?
Consider the figure shown below. You are lowering two boxes,one on top of the other, down a ramp by pulling on a rope parallel to thesurface of the ramp. Both blocks move with a constant velocity of 15.0 [ m s]. The coefficient of kinetic friction between the ramp and the lower boxare 0.444 and the coefficient of static friction between the two boxes is0.800. a. Draw the Free-Body diagram of both blocks. Set the x-axis parallel tothe ramp. b. What are the magnitude and direction of the frictional force on the upper box? c. What is the magnitude of the applied force? d. Determine the angle at which the top block will start to slide downthe bottom block.
Answer letter D ONLY pls
A 75-kg crane is suspended through a frictionless pulley to a massless pole at two points, each point is an end of two cables, and the left cable has an angle to the pole of 25 degrees while that of the right angle has an angle of 15 degrees. Each cable passes over a frictionless pulley. What is the tension force of the left cable? What is the tension force of the right cable?
Draw a free-body diagram of the problem.
Identify the known information.
Identify the unknown information.
Write the equations to solve for the unknown information.
Calculate.
Encircle your final answer with the appropriate units.
Chapter 6 Solutions
University Physics Volume 1
Ch. 6 - Check Your Understanding Now calculate the scale...Ch. 6 - Check Your Understanding Calculate the...Ch. 6 - Check Your Understanding Determine a general...Ch. 6 - Check Your Understanding The soccer player stops...Ch. 6 - Check Your Understanding Find the direction of the...Ch. 6 - Check Your Understanding If atmospheric resistance...Ch. 6 - Check Your Understanding A block of mass 1.0 kg...Ch. 6 - Check Your Understanding The snowboarder is now...Ch. 6 - Check Your Understanding A car moving at 96.8 km/h...Ch. 6 - Check Your Understanding Find the terminal...
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Anna says a...Ch. 6 - A nonrotating frame of reference placed at the...Ch. 6 - Athletes such as swimmers and bicyclists wear body...Ch. 6 - Two expressions were used for the drag force...Ch. 6 - As cars travel, oil and gasoline leaks onto the...Ch. 6 - Why can a squirrel jump from a tree branch to the...Ch. 6 - Solving Problems with Newton’s Laws A 30.0-kg girl...Ch. 6 - Find the tension in each of the three cables...Ch. 6 - Three forces act on an object, considered to be a...Ch. 6 - A flea jumps by exerting a force of...Ch. 6 - Two muscles in the back of the leg pull upward on...Ch. 6 - After a mishap, a 76.0-kg circus performer clings...Ch. 6 - A 35.0-kg dolphin decelerates from 12.0 to 7.50 m/...Ch. 6 - When starting a foot race, a 70.0-kg sprinter...Ch. 6 - A large rocket has a mass of 2.00106kgat takeoff,...Ch. 6 - A basketball player jumps straight up for a ball....Ch. 6 - A 2.50-kg fireworks shell is fired straight up...Ch. 6 - A 0.500-kg potato is fired at an angle of 80.0...Ch. 6 - An elevator filled with passengers has a mass of...Ch. 6 - A 20.O-g ball hangs from the roof of a freight car...Ch. 6 - A student’s backpack, full of textbooks, is hung...Ch. 6 - A service elevator takes a load of garbage, mass...Ch. 6 - A roller coaster car starts from rest at the top...Ch. 6 - The device shown below is the Atwood’s machine...Ch. 6 - Two blocks are connected by a massless rope as...Ch. 6 - Shown below are two carts connected by a cord that...Ch. 6 - A 2.00 kg block (mass 1) and a 4.00 kg block (mass...Ch. 6 - Friction (a) When rebuilding his car’s engine, a...Ch. 6 - (a) What is the maximum frictional force in the...Ch. 6 - Suppose you have a 120-kg wooden crate resting on...Ch. 6 - (a) If half of the weight of a small...Ch. 6 - A team of eight dogs pulls a sled with waxed wood...Ch. 6 - Consider the 65.0-kg ice skater being pushed by...Ch. 6 - Show that the acceleration of any object down a...Ch. 6 - Show that the acceleration of any object down an...Ch. 6 - Calculate the deceleration of a snow boarder going...Ch. 6 - A machine at a post office sends packages out a...Ch. 6 - If an object is to rest o an incline without...Ch. 6 - Calculate the maximum acceleration of a car that...Ch. 6 - Calculate the maximum acceleration of a car that...Ch. 6 - Repeat the preceding problem for a car with four-...Ch. 6 - A freight train consists of two 8.00105kgengines...Ch. 6 - Consider the 52.0-kg mountain climber shown below....Ch. 6 - A contestant in a winter sporting event pushes a...Ch. 6 - The contestant now pulls the block of ice with a...Ch. 6 - At a post office, a parcel that is a 20.0-kg box...Ch. 6 - (a) A 22.0-kg child is riding a playground...Ch. 6 - Calculate the centripetal force on the end of a...Ch. 6 - What Is the ideal banking angle for a gentle turn...Ch. 6 - What is the ideal speed to take a 100.0-m-radius...Ch. 6 - (a) What is the radius of a bobsled turn banked at...Ch. 6 - Part of riding a bicycle involves leaning at the...Ch. 6 - If a car takes a banked curve at less than the...Ch. 6 - Modem roller coasters have vertical loops like the...Ch. 6 - A child of mass 40.0 kg is in a roller coaster car...Ch. 6 - In the simple Bohr model of the ground state of...Ch. 6 - Railroad tracks follow a circular curve of radius...Ch. 6 - The CERN particle accelerator is circular with a...Ch. 6 - A car rounds an unbanked curve of radius 65 m. If...Ch. 6 - A banked highway is designed for traffic moving at...Ch. 6 - Drag Force and Terminal Speed The terminal...Ch. 6 - A 60.0-kg and a 90.0-kg skydiver jump from an...Ch. 6 - A 560-g squirrel with a surface area of...Ch. 6 - To maintain a constant speed, the force provided...Ch. 6 - By what factor does the drag force on a car...Ch. 6 - Calculate the velocity a spherical rain drop would...Ch. 6 - Using Stokes’ law, verify that the units for...Ch. 6 - Find the terminal velocity of a spherical...Ch. 6 - Stokes’ law describes sedimentation of particles...Ch. 6 - Suppose that the resistive force of the air on a...Ch. 6 - A small diamond of mass 10.0 g drops from a...Ch. 6 - (a) What is the final velocity of a car originally...Ch. 6 - A 75.0-kg man stands on a bathroom scale in an...Ch. 6 - (a) Calculate the minimum coefficient of friction...Ch. 6 - As shown below, if M=5.50kg , what is the tension...Ch. 6 - As shown below, if F=60.0Nand M=4.00kg, what is...Ch. 6 - As shown below, if M=6.0kg, what is the tension in...Ch. 6 - A small space probe Is released from a spaceship....Ch. 6 - A half-full recycling bin has mass 10 kg and is...Ch. 6 - A child has mass 6.0 kg and slides down a...Ch. 6 - The two barges shown here are coupled by a cable...Ch. 6 - If the order of the barges of the preceding...Ch. 6 - An object with mass m moves along the x -axis. Its...Ch. 6 - A helicopter with mass 2.35104kg has a position...Ch. 6 - Located at the origin, an electric car of mass mis...Ch. 6 - A particle of mass mis located at the origin. It...Ch. 6 - A 2.0-kg object has a velocity of at t=0 . A...Ch. 6 - A 1.5-kg mass has an acceleration of (4.0 i 3.0 j...Ch. 6 - A box is dropped onto a conveyor belt moving at...Ch. 6 - Shown below is a 10.0-kg block being pushed by a...Ch. 6 - As shown below, the mass of block 1 is m1=4.0kg ....Ch. 6 - A student is attempting to move a 30-kg...Ch. 6 - A crate of mass 100.0 kg rests on a rough surface...Ch. 6 - A car is moving at high speed along a highway when...Ch. 6 - A crate having mass 50.0 kg falls horizontally off...Ch. 6 - A 15-kg sled is pulled across a horizontal,...Ch. 6 - A 30.O-g ball at the end of a stung is swung in a...Ch. 6 - A particle of mass 0.50 kg starts moves through a...Ch. 6 - A stunt cyclist rides on the interior of a...Ch. 6 - When a body of mass 0.25 kg is attached to a...Ch. 6 - A piece of bacon starts to slide down the pan when...Ch. 6 - A plumb bob bangs from the roof of a railroad car....Ch. 6 - An airplane flies at 120.0 m/s and banks at a...Ch. 6 - The position of a particle is given by r(t)=A(cost...Ch. 6 - Two blocks connected by a string are pulled across...Ch. 6 - As shown below, the coefficient of kinetic...Ch. 6 - In the figure, the coefficient of kinetic friction...Ch. 6 - Two blocks are stacked as shown below, and rest on...Ch. 6 - A box rests on the (horizontal) back of a truck....Ch. 6 - A double-incline plane is shown below. 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