Question

If a force of constant magnitude acts in direction perpendicular to the motion of a particle then its

Answer 1

A particle is acted upon by a force of constant magnitude which is always perpendicular to the velocity of the particle. The motion of the particle takes place in a plane. It follows that :

a) its velocity is constant

b) its acceleration is constant

c) its kinetic energy is constant

d) it moves in a circular path.

Answer 2

Since a constant force is acting on the particle, it's velocity decreases non uniformly . Hence velocity is not constant .

This implies that acc is not constant.

As velocity is not constant so does momentum

Therefore speed is constant.