A 12-kg crate rests on a horizontal surface and a boy pushing it with a force that is 30 below the horizontal. If the coefficient of static friction is 0.2, the minimum magnitude force he needs to start the crate moving (in N) is ? g = 10 m/s a. 31 b. 50 c. 72 d. 97

A 12-kg crate rests on a horizontal surface and a boy pushing it with a force that is 30 below the horizontal. If the coefficient of static friction is 0.2, the minimum magnitude force he needs to start the crate moving (in N) is ? g = 10 m/s a. 31 b. 50 c. 72 d. 97

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter6: Applications Of Newton's Laws

Section: Chapter Questions

Problem 123AP: Two blocks connected by a string are pulled across a horizontal surface by a force applied to one of...

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A 12-kg crate rests on a horizontal surface and a boy pushing it with a force that is 30 below
the horizontal. If the coefficient of static friction is 0.2, the minimum magnitude force he
needs to start the crate moving (in N) is ? g= 10 m/s
a.
31
b. 50
C.
72
d. 97

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