April works at the grocery store. She needs to move a heavy crate of bananas ( m = 80 kg) to the produce section. She uses a rope to drag the crate at an angle of 20° above the horizontal with a force of 350 N. a. If there is no friction, what is the acceleration of the bananas?  b. If the coefficient of kinetic friction between the crate and the floor is 0.2, what is the acceleration of the crate?

Glencoe Physics: Principles and Problems, Student Edition
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Author:Paul W. Zitzewitz
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Chapter4: Forces In One Dimension
Section: Chapter Questions
Problem 82A
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April works at the grocery store. She needs to move a heavy crate of bananas ( m = 80 kg) to the produce section. She uses a rope to drag the crate at an angle of 20° above the horizontal with a force of 350 N.

a. If there is no friction, what is the acceleration of the bananas? 

b. If the coefficient of kinetic friction between the crate and the floor is 0.2, what is the acceleration of the crate?

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