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Question

A horizontal force of 100 N is required to push a box across the floor at a constant velocity.



a) Show that the net force acting on the box is zero.

b) Show that the friction force that acts on the box is 100 N.

11 years ago

Answers

Henry
a. Fap-Ff = m*a = m*0
Fap - Ff = 0
The velocity is constant. Therefore,
the acceleration is zero.
Fap = Force applied.
Ff = Force of friction.

b. Fap - Ff = 0
100 - Ff = 0
Ff = 100 N.
11 years ago

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