A clerk accelerates a crate of Oreo cookies, with a mass, m, down an aisle with a frictionless floorby pulling on a rope attached to the box. The clerk pulls with a force, F, at an angle, 0(theta), with thehorizontal.Would it be easier for the clerk to push the Oreos at a downward angle that pull at an upward angle when friction is present? Show supporting work.

Question
Asked Dec 16, 2019
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A clerk accelerates a crate of Oreo cookies, with a mass, m, down an aisle with a frictionless floor
by pulling on a rope attached to the box. The clerk pulls with a force, F, at an angle, 0(theta), with the
horizontal.

Would it be easier for the clerk to push the Oreos at a downward angle that pull at an upward angle when friction is present? Show supporting work.

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Expert Answer

Step 1

Consider the case when the box pulled at an upward angle and draw the free body diagram

Step 2

Write the expression for net vertical force

Step 3

Write the expression for n...

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