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A force of constant magnitude acts on ...

A force of constant magnitude acts on a particle in such a way that it always remains perpendicular to its velocity .

A

Kinetic energy of the particle remains constant .

B

Velocity of the particle remains constant .

C

Acceleration of particle changes continuously

D

Particle moves on a circular path .

Text Solution

Verified by Experts

The correct Answer is:
A, C, D
Force is always perpendicular to its velocity hence work done is zero and kinetic energy remains constant . Direction of velocity is continuously changing so velocity is not constant . Direction of acceleration is continuously changing hence we can say that acceleration of particle changes continuously . Force always acts perpendicular to velocity hence it acts like centripetal force ans moves the particle in a circular parth Hence options (a) , (c ) and (d ) are correct .
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