COLLEGE PHYSICS
2nd Edition
ISBN: 9781464196393
Author: Freedman
Publisher: MAC HIGHER
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Chapter 10, Problem 5QAP
To determine
Why don't heavy objects fall faster than the light ones.
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If a 2.0 kg weight falls 4.0 meters vertically downward from rest, how fast will it be going just before it hits the ground? Take g to be equal to 10 m/s^2 and ignore air resistance.
A fisherman has caught a very large, 5.0 kg fish from a dock that is 2.0 m above the water. He is using a lightweight fishing line that will break under a tension of 60N or more. He is eager to get the fish to the dock in the shortest possible time.
If the fish is at rest at the water's surface, what's the least amount of time in which the fisherman can raise the fish to the dock without losing it?
Express your answer with the appropriate units.
A skyscraper elevator travels 20 m while reaching its cruising speed of 10m/s. A 82 kg passenger gets a board on the ground floor just as the doors are closing. What is the passengers apparent weight just as the doors close? Note that the passenger is at rest just as the doors close.
Chapter 10 Solutions
COLLEGE PHYSICS
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