Physics of Everyday Phenomena
9th Edition
ISBN: 9781259894008
Author: W. Thomas Griffith, Juliet Brosing Professor
Publisher: McGraw-Hill Education
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Chapter 3, Problem 11CQ
To determine
The forces acting on an object in free fall.
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Students have asked these similar questions
A 1,900 kg car is slowed down on the high way from 50 m/s to 36 m/s over a
distance of 50 m (did the driver spot a patrol car?). How many Newtons of frictional
force was responsible for the deceleration?
Answer in absolute value.
Choose the correct word to make a sensible statement.
The first law of motion is the law of
inertia
+ . It means that an
object will remain
+ at rest or
will change
* in motion unless
an external force
* will act
on it.
The second law of
+ is
law of
+ it states that
with an increasing mass of an object, requires
* force to maintain the
The
* law is the law of
+ . It means that when
the Ist object exerts force unto 2nd object, the second
object exerts
+ amount
of force but in
direction.
gideon pushes his toy box across the kitchen floor with an acceleration of 0.50 m/s2 to the right. if the box has a mass of 850 grams (g), what force must gideon use to move it?
(ignore friction and give your answer in Newtons)
Chapter 3 Solutions
Physics of Everyday Phenomena
Ch. 3 - A small piece of paper is dropped and flutters to...Ch. 3 - The diagram shows the positions at intervals of...Ch. 3 - The diagram shows the positions at intervals of...Ch. 3 - A lead ball and an aluminum ball, each 1 in. in...Ch. 3 - Two identical pieces of paper, one crumpled into a...Ch. 3 - Two identical pieces of paper, one crumpled into a...Ch. 3 - Aristotle stated that heavier objects fall faster...Ch. 3 - A rock is dropped from the top of a diving...Ch. 3 - The graph shows the velocity plotted against time...Ch. 3 - Prob. 10CQ
Ch. 3 - Prob. 11CQCh. 3 - A ball is thrown downward with a large starting...Ch. 3 - A ball thrown straight upward moves initially with...Ch. 3 - A rock is thrown straight upward, reaching a...Ch. 3 - A ball is thrown straight upward and then returns...Ch. 3 - A ball is thrown straight upward and then returns...Ch. 3 - A ball is thrown straight upward. At the very top...Ch. 3 - A ball is thrown straight upward and then returns...Ch. 3 - Prob. 19CQCh. 3 - A ball rolling rapidly along a tabletop rolls off...Ch. 3 - For the two balls in question 20, which, if...Ch. 3 - Is it possible for an object to have a horizontal...Ch. 3 - A ball rolls off a table with a large horizontal...Ch. 3 - A ball rolls off a table with a horizontal...Ch. 3 - An expert marksman aims a high-speed rifle...Ch. 3 - In the diagram, two different trajectories are...Ch. 3 - For either of the trajectories shown in the...Ch. 3 - Assuming that the two trajectories in the diagram...Ch. 3 - A cannonball fired at an angle of 70 to the...Ch. 3 - Will a shot fired from a cannon at a 20 launch...Ch. 3 - The diagram shows a wastebasket placed behind a...Ch. 3 - In the situation pictured in question 31, is the...Ch. 3 - In shooting a free throw in basketball, what is...Ch. 3 - In shooting a basketball from greater than...Ch. 3 - A football quarterback must hit a moving target...Ch. 3 - A steel ball is dropped from a diving platform...Ch. 3 - For the ball in exercise E1: a. Through what...Ch. 3 - A large rock is dropped from the top of a high...Ch. 3 - Suppose Galileos pulse rate was 75 beats per...Ch. 3 - A ball is thrown downward with an initial velocity...Ch. 3 - A ball is dropped from a high building. Using the...Ch. 3 - A ball is thrown upward with an initial velocity...Ch. 3 - How high above the ground is the ball in exercise...Ch. 3 - At what time does the ball in exercise 7 reach the...Ch. 3 - Prob. 10ECh. 3 - A bullet is fired horizontally with an initial...Ch. 3 - A ball rolls off a shelf with a horizontal...Ch. 3 - A ball rolls off a table with a horizontal...Ch. 3 - A ball rolls off a table with a horizontal...Ch. 3 - A ball rolls off a platform that is 3 meters above...Ch. 3 - A projectile is fired at an angle such that the...Ch. 3 - A ball is thrown straight upward with an initial...Ch. 3 - Two balls are released simultaneously from the top...Ch. 3 - Two balls are rolled off a tabletop that is 0.7 m...Ch. 3 - A cannon is fired over level ground at an angle of...Ch. 3 - An excellent major league pitcher can throw a...Ch. 3 - An archeologist is running at 8 m/s with her hands...
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- An inventive child named Nick wants to reach an apple in a tree without climbing the tree. Sitting in a chair connected to a rope that passes over a frictionless pulley (see Figure), Nick pulls on the loose end of the rope with such a force that the spring scale reads 250 N. Nick's true weight is 320 N, and the chair weighs 160 N. Nick's feet are not touching the ground. (a) Draw one pair of diagrams showing the forces for Nick and the chair considered as separate systems and another diagram for Nick and the chair considered as one system. (b) Show that the acceleration of the system is upward and find its magnitude. (c) Find the force Nick exerts on the chair. 2.arrow_forwardMoments after making the dreaded decision to jump out the door of the airplane flying at 11,938 feet, a skydiver's 80.7-kg body experiences 119 N of air resistance. The magnitude of the skydiver's downward acceleration at this instant in time is ______ m/s2. Use the approximation g ≈ 10 m/s2.arrow_forwardA batter strikes a baseball of mass 0.15 kg with a force of 18,000 N. What is the acceleration of the baseball? Question 9 options: 9.8 m/s/s 120,000 m/s/s 2,700 m/s/s 8.3 m/s/sarrow_forward
- A force of 2.10 N Is exerted on a 6.70 g rifle bullets. What is the bullets acceleration? (write your answer in m/s^2)arrow_forwardA 500kg car exerts 5,000,000 N of force (5x106 N) on a 100 kg billboard (large advertisement) located on the roadside when the car hits it with a head on collision. With what force does the billboard exert on the car? 1000 N 238,000 N 5,000,000 N 12,000,000 Narrow_forwardA monkey of mass 20 kg is holding a vertical rope. The rope will not break when a mass of 25 kg is suspended from it but will break if the mass exceeds 25 kg. What is the maximum acceleration with which the monkey can climb up along the rope? (g = 10 m/s²)arrow_forward
- A rock, in deep space, has a rocket thruster, with negligible mass, attached to it. The rocket causes a force of 3,300[N]. If the rock has a mass of 4.62×104[kg], what is the acceleration experienced by the rock, due to this force alone? Express your answer in terms of m/s2.arrow_forwardOn aircraft carriers, catapults are used to accelerate aircraft to flight speeds in a short distance. One such catapult takes a 18,000 kg jet from zero to 70 m/s in 2.5 s. How large is the force that the catapult must exerts on the jet?arrow_forwardA heavy man’s resting weight is 1029 N. He is standing on a scale on an elevator that has a mass (without the man) of 1250 kg. While the elevator is in motion the man’s apparent weight reads 1134 N. The tension on the cable supporting the elevator is (in N)? The answer is 14,634 N but I do not know how to get the answer. Please provide a detailed explanation.arrow_forward
- Two ice skaters stand together as illustrated in ● Fig. 3.28. They “push off” and travel directly away from each other, the boy with a velocity of 0.50 m/s to the left. If the boy weighs 735 N and the girl weighs 490 N, what is the girl’s velocity after they push off? (Consider the ice to be frictionless.)arrow_forwardA student with a mass of 68 kg gets on a ferris wheel that rotates at a constant speed. When the ferris wheel reaches its top point, the reaction force applied by the seat to the student is 556 N. What is the reaction force the seat exerts on the student when the ferris wheel reaches its lowest point? (g = 9.8 m / s²)arrow_forwardConcept Question #1: A pitcher throws a fastball to a catcher. Who exerts a larger force on the ball? Explain.arrow_forward
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