Question

For a body to be in equilibrium, which of the following conditions is necessary?

Options

• Its momentum is zero.

• Its kinetic energy is zero.

• Its velocity is zero.

• Its acceleration is zero.

Answer 1

Its acceleration is zero.

Explanation:

For a body to be in equilibrium, the net force acting on it must be zero. According to Newton’s second law of motion, zero net force means zero acceleration. A body in equilibrium may be at rest or moving with uniform velocity.