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Force class 11

Force class 11

A force is a push or pull that changes the state of a body, its position, and the direction of motion of a body.

A force is needed to change an object’s state of motion.

Force is a vector quantity.

SI Unit of force is newton(N).

Net force: If number of forces are acting on a body then their resultant is known as net force.

Force class 11
Question 1:

A body is acted upon by number of external force. can it remain at rest?

Ans: yes, if number of balance forces acting on it so that there resultant force is equal to zero.

Question 2:

If the net force acting on a body be zero, will the body remain necessarily in rest position ? explain.

Ans: No, when the net force acting on a body is zero, the body may be in a state of uniform motion along a straight line or in a resting condition.

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