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Questions  

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 straight line

detailed solution

Correct option is C

When a force of constant magnitude which is always perpendicular to the velocity of the particle acts on a particle, the work done and hence change in kinetic energy is zero.

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Similar Questions

A particle moves along a horizontal circle with constant speed. If 'a' is its acceleration and 'E' is its kinetic energy
A) a is constant B) E is constant C) a is variable D) E is variable


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