Conceptual Physical Science (6th Edition)
6th Edition
ISBN: 9780134060491
Author: Paul G. Hewitt, John A. Suchocki, Leslie A. Hewitt
Publisher: PEARSON
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Textbook Question
Chapter 2, Problem 4RAT
The reason why a 10-kg rocks falls no faster than a 5-kg rock in free falls is that the
(a) 10-kg rock has greater acceleration.
(b) 5-kg rock his greater acceleration.
(c) force of gravity is the same for both.
(d) force/mass ratio is the same for both.
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Explain the answer.
Albert weights 85kg stands on a scale inside an elevator. What
is the weight in Newton that the reads when the elevator (a)
of 3 m/s? (c)
at rest? (b) moving upward at a constant speed
moving downward at a constant speed of 5 m/s (d) moving with
an upward acceleration of 3 m/s²? (e) moving with an downward
acceleration of 5 m/s²?
given:
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85 kg
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9.8 m/s?
? upward
W =
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s = 5 m/s (downward)
3 m/s (upward)
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||
||
Chapter 2 Solutions
Conceptual Physical Science (6th Edition)
Ch. 2 - State the law of inertia.Ch. 2 - Is inertia a property of matter or a force of some...Ch. 2 - What concept was missing from people's minds in...Ch. 2 - When a bird lets go of a branch and drops to the...Ch. 2 - What kind of path would the planets follow if...Ch. 2 - State Newton's second law.Ch. 2 - Is acceleration directly or inversely proportional...Ch. 2 - Is acceleration directly or inversely proportional...Ch. 2 - If the mass of a sliding block is tripled at the...Ch. 2 - What is the net force that acts on a 10-N freely...
Ch. 2 - Why doesnt a heavy object accelerate more than a...Ch. 2 - What is the net force that acts on a 10-N falling...Ch. 2 - What two principal factors affect the force of air...Ch. 2 - What is the acceleration of a falling object that...Ch. 2 - If two objects of the same size fall through air...Ch. 2 - Why does a heavy parachutist fall faster than a...Ch. 2 - Earlier in this chapter, we treated force as a...Ch. 2 - How many forces are required for a single...Ch. 2 - When you push against a wall with your fingers,...Ch. 2 - A boxer can hit a heavy bag with great force. Why...Ch. 2 - State Newtons third law.Ch. 2 - Consider hitting a baseball with a bat. 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