Question

When you push something heavy the resistance you feel decreases as the body starts moving.Explain what happens.

Answer 1

Initially the body is at rest so exhibit inertia of rest so it takes more force in putting the body in motion. Once it is set to motion, it exhibit inertia of motion and we put our force in the direction of the initial motion of body.

Hence less force is needed to oppose the frictional force acting between the object and the surface.

Answer 2

Answer:

Explanation:

It is because when the object is at rest, static friction occurs. The static friction is maximum when the applied force is just short of the force required to start motion between the two bodies in contact. Once the object starts moving, friction (resistance) we feel decreases.