A heavy box is sitting at rest on an incline. There is friction between the box and the incline, and a rope is pulling on the box in a direction up and to the left, parallel to the incline. A physics student draws the free-body diagram below right for the box

A heavy box is sitting at rest on an incline. There is friction between the box and the incline, and a rope is pulling on the box in a direction up and to the left, parallel to the incline. A physics student draws the free-body diagram below right for the box

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter4: Dynamics: Force And Newton's Laws Of Motion

Section: Chapter Questions

Problem 24PE: The wheels of a midsize car exert a force of 2100 N backward on the road to accelerate the car in...

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Concept explainers

Newton’s Third Law of Motion

The horse pulls the cart and the cart pulls the horse in response as per Newton third law. So the big question is, “Don’t the two forces cancel each other? How does the cart accelerate?”

Question

A heavy box is sitting at rest on an incline. There is friction between the box and the incline, and a rope is pulling on
the box in a direction up and to the left, parallel to the incline. A physics student draws the free-body diagram below
right for the box.
10. B3-WWT43: Box ON INCLINE-FORCES
Rope
Ton box by ropc
Nor
Non box by incline
Box
fon incline by box
Wor
on box by Earth
What, if anything, is wrong with this student's free-body diagram? If something is wrong, explain the error
and how to correct it. If this free-body diagram is correct, explain why.

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