Question

3. The force required to start a motion is maximum as compared to the force required to keep a body in motion. give reason for following statement.​

Answer 1

Answer:

static frictional

Explanation:

ANSWER

when a body is in contact with another body and some normal force acts then if any force is applies on then which causes relative motion between them, a resisting force will act called frictional force. Up to a point when motion does not start the friction acting is called static friction, once the motion starts then resisting force acting slightly decreases [call dynamic friction force.

so the force required to overcome to start a motion is static frictional force

Answer 2

Answer:

The objects move in the direction the force applied. If the applied force is not sufficient, the object may not move. For example, if you try to push a tree it will not move.