An external force F of magnitude F = 5 N is applied vertically downward on an object of 10 N weight resting on a horizontal surface. The magnitude of the normal force n exerted by the ground on this object is: mg ON O 5 N 15 N 17 N

An external force F of magnitude F = 5 N is applied vertically downward on an object of 10 N weight resting on a horizontal surface. The magnitude of the normal force n exerted by the ground on this object is: mg ON O 5 N 15 N 17 N

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 3PE: A cleaner pushes a 4.50-kg laundry cart in such a way that the net external force on it is 60.0 N....

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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

external force F
magnitude F =5N is applied
vertically downward on an
object of 10 N weight resting
on a horizontal surface. The
magnitude of the normal force
n exerted by the ground on
this object is:
An
of
mg
ON
5 N
15 N
17 N

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