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 :

Answer»

its VELOCITY is CONSTANT
its acceleration is constant
its kinetic energy is constant
it moves in a straight line

Solution :As force is constant in magnitude, the magnitude of velocity is constant. Its DIRECTION CHANGES. THEREFORE, the K.E. is constant.


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