Question

A horizontal force of 200 N pushes a box across a floor at constant speed. What is the net force of friction?

Answer 1

Answer:

For an object to move with constant velocity, net external force experienced by it must be equal to ZERO i.e F

external

=0

Thus a friction of 200 N must be exerted on the cabinet so that it moves with a constant velocity under the applied horizontal force of 200 N.

Answer 2

Answer:

For an object to move with constant velocity, net external force experienced by it must be equal to ZERO i.e F

external

=0

Thus a friction of 200 N must be exerted on the cabinet so that it moves with a constant velocity under the applied horizontal force of 200 N.

Explanation:

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