Question

A force of 100N acts on a body moving with a constant velocity of 20m/s on the floor in a straight line.
What is the force of friction between the body and the floor

Answer 1

Answer-:

Since body is moving with constant velocity, so no net force acts on the body. Hence, the force of 100 N acting on the body must be balanced by the force of friction between the body and the floor in contact. Therefore, the force of friction between the body and the floor is equal to 100 N

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Answer 2

Answer:

Since body is moving with constant velocity, so no net force acts on the body. Hence, the force of 100 N acting on the body must be balanced by the force of friction between the body and the floor in contact. Therefore, the force of friction between the body and the floor is equal to 100 N.