COLLEGE PHYSICS
2nd Edition
ISBN: 9781464196393
Author: Freedman
Publisher: MAC HIGHER
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Chapter 4, Problem 31QAP
To determine
In the absence of a net force, an object cannot be
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The parachute on a race car of weight 8 820 N opens at the end of a quarter-mile run when the car is traveling at 35 m/s. What total retarding force must be supplied by the parachute to stop the car in a distance of 1 000 m?
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196.2 N
245.2 N
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A woman is sitting in a chair attached to a massless rope that runs over a massless, frictionless
pulley attached to the ceiling. She holds the other end of the rope in the chair. Their combined
mass is 95.0 kg. With what force magnitude must the woman pull on the rope if she is to rise:
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(d) With a constant velocity?
(e) With an upward acceleration of 1.3 m/s2?
(Hint: A free body diagram will be particularly useful...)
Chapter 4 Solutions
COLLEGE PHYSICS
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