Question

When a force is exerted on a stationary object, it will move?
(A) True
(B) False

Answer 1

Hint:Force is defined as a push or a pull. For a body to exert force on another body contact is not necessary. There are two types of forces: contact and non-contact. Examples of contact forces are frictional force, mechanical force etc. and examples of non-contact force are gravitational force, magnetic force etc.

Complete step by step answer:
Given in the question is that force acting on a stationary object it will start to move. Let us examine in detail.
According to Newton's first law if a body is at rest it will remain at rest, if a body is in motion it will remain in motion until and unless it is acted upon by some external force. So, this implies a force is necessary to move a body from rest. But it does not imply that a force will necessarily bring a body from rest state into motion, for example when we try to pull a big rock by applying force on it, it does not move. This shows that force does not bring a body from rest state to motion, hence the given statement is false.
So, the correct option is (B).

Note: A force acting on a body can have multiple effects on it. First it can change the state of the motion of the body, it can make a body at rest start moving or a moving body to come to rest. Second it can change the direction of the motion of the body.