5th Edition

ISBN: 9780321992277

Author: GIANCOLI

Publisher: PEARSON

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Textbook Question

Chapter 4.5, Problem 1DE

Return to the first Chapter-Opening Question, page 83, and answer it again now. Try to explain why you may have answered differently the first time.

CHAPTER-OPENING QUESTIONS—Guess now!

A 150-kg football player collides head-on with a 75-kg running back. During the collision, the heavier player exerts a force of magnitude F_A on the smaller player. If the smaller player exerts a force F_B back on the heavier player, which response is most accurate?

(a) F_B = F_A.
(b) F_B < F_A.
(c) F_B > F_A.
(d) F_B = 0.
(e) We need more information.

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Chapter 4.5, Problem 1CE

Chapter 4.6, Problem 1EE

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Chapter 4 Solutions

PHYSICS F/SCI.+ENGINEERS W/MOD.PHYSICS

Ch. 4.4 - Suppose you watch a cup slide on the (smooth)...Ch. 4.5 - Prob. 1BE Ch. 4.5 - If you push on a heavy desk, does it always push...Ch. 4.5 - Return to the first Chapter-Opening Question, page...Ch. 4.7 - Prob. 1FE Ch. 4.7 - Prob. 1GE Ch. 4.7 - Prob. 1HE Ch. 4 - Why does a child in a wagon seem to fall backward...Ch. 4 - If an object is moving, is it possible for the net...Ch. 4 - If the acceleration of an object is zero, are no...

Ch. 4 - Only one force acts on an object. Can the object...Ch. 4 - When a golf ball is dropped to the pavement, it...Ch. 4 - If you walk along a log floating on a lake, why...Ch. 4 - (a) Why do you push down harder on the pedals of a...Ch. 4 - Prob. 9Q Ch. 4 - The force of gravity on a 2-kg rock is twice as...Ch. 4 - Prob. 11Q Ch. 4 - When an object falls freely under the influence of...Ch. 4 - Compare the effort (or force) needed to lift a...Ch. 4 - When you stand still on the ground, how large a...Ch. 4 - Whiplash sometimes results from an automobile...Ch. 4 - Mary exerts an upward force of 40N to hold a bag...Ch. 4 - A father and his young daughter are ice skating....Ch. 4 - Prob. 19Q Ch. 4 - Which of the following objects weighs about 1 N:...Ch. 4 - Why might your foot hurt if you kick a heavy desk...Ch. 4 - When you are running and want to slop quickly, you...Ch. 4 - Suppose that you are standing on a cardboard...Ch. 4 - Prob. 2MCQ Ch. 4 - Prob. 3MCQ Ch. 4 - Prob. 4MCQ Ch. 4 - Prob. 5MCQ Ch. 4 - Prob. 7MCQ Ch. 4 - Prob. 9MCQ Ch. 4 - Prob. 10MCQ Ch. 4 - Prob. 11MCQ Ch. 4 - Prob. 12MCQ Ch. 4 - Prob. 13MCQ Ch. 4 - Prob. 1P Ch. 4 - Prob. 2P Ch. 4 - Prob. 3P Ch. 4 - Prob. 4P Ch. 4 - Prob. 5P Ch. 4 - Prob. 6P Ch. 4 - (II) Superman must stop a 120-km/h train in 150 m...Ch. 4 - Prob. 8P Ch. 4 - Prob. 9P Ch. 4 - Prob. 10P Ch. 4 - (II) A fisherman yanks a fish vertically out of...Ch. 4 - Prob. 12P Ch. 4 - (II) A 20.0-kg box rests on a table. (a) What is...Ch. 4 - (II) A particular race car can cover a...Ch. 4 - Prob. 15P Ch. 4 - Prob. 16P Ch. 4 - Prob. 17P Ch. 4 - (II) Can cars stop on a dime? Calculate the...Ch. 4 - Prob. 19P Ch. 4 - (II) Using focused laser light, optical tweezers...Ch. 4 - Prob. 21P Ch. 4 - Prob. 22P Ch. 4 - Prob. 23P Ch. 4 - (II) An exceptional standing jump would raise a...Ch. 4 - (II) High-speed elevators function under two...Ch. 4 - Prob. 26P Ch. 4 - Prob. 27P Ch. 4 - Prob. 28P Ch. 4 - (I) Draw the free-body diagram for a basketball...Ch. 4 - (I) A 650-N force acts in a northwesterly...Ch. 4 - (I) Sketch the tree body diagram of a baseball (a)...Ch. 4 - Prob. 32P Ch. 4 - Prob. 33P Ch. 4 - Prob. 34P Ch. 4 - (II) The cords accelerating the buckets in Problem...Ch. 4 - Prob. 36P Ch. 4 - (II) A train locomotive is pulling two cars of the...Ch. 4 - Prob. 38P Ch. 4 - (II) A skateboarder, with an initial speed of...Ch. 4 - (II) At the instant a race began, a 65-kg sprinter...Ch. 4 - (II) A mass m is at rest on a horizontal...Ch. 4 - Prob. 42P Ch. 4 - (II) A 27-kg chandelier hangs from a ceiling on a...Ch. 4 - (II) Redo Example 413 but (a) set up the equations...Ch. 4 - (II) The block shown in Fig. 4-43 has mass m = 7.0...Ch. 4 - Prob. 46P Ch. 4 - Prob. 47P Ch. 4 - Prob. 48P Ch. 4 - Prob. 49P Ch. 4 - (II) As shown in Fig. 4-41, five balls (masses...Ch. 4 - A super high-speed 14-car Italian train has a mass...Ch. 4 - Prob. 52P Ch. 4 - Prob. 53P Ch. 4 - (II) A child on a sled reaches the bottom of a...Ch. 4 - Prob. 55P Ch. 4 - Prob. 56P Ch. 4 - (III) Determine a formula for the acceleration of...Ch. 4 - (III) Suppose the pulley in Fig. 446 is suspended...Ch. 4 - Prob. 59P Ch. 4 - (II) Three blocks on a frictionless horizontal...Ch. 4 - Prob. 61P Ch. 4 - (III) A small block of mass m rests on the sloping...Ch. 4 - (III) The double Atwood machine shown in Fig. 4-48...Ch. 4 - (III) Determine a formula for the magnitude of the...Ch. 4 - Prob. 65P Ch. 4 - Prob. 66P Ch. 4 - Prob. 67GP Ch. 4 - Prob. 69GP Ch. 4 - Prob. 70GP Ch. 4 - Prob. 71GP Ch. 4 - Prob. 72GP Ch. 4 - Prob. 73GP Ch. 4 - Prob. 74GP Ch. 4 - Prob. 75GP Ch. 4 - A block (mass mA) lying on a fixed frictionless...Ch. 4 - Prob. 77GP Ch. 4 - Prob. 78GP Ch. 4 - (a) What minimum force F is needed to lift the...Ch. 4 - Prob. 80GP Ch. 4 - A jet aircraft is accelerating at 3.8m/s2 as it...Ch. 4 - Prob. 82GP Ch. 4 - Prob. 83GP Ch. 4 - A fisherman in a boat is using a 10-lb test...Ch. 4 - Prob. 85GP Ch. 4 - Prob. 86GP Ch. 4 - Prob. 87GP Ch. 4 - Prob. 88GP Ch. 4 - Prob. 90GP Ch. 4 - Prob. 91GP Ch. 4 - Prob. 92GP Ch. 4 - Prob. 93GP Ch. 4 - Prob. 94GP

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