Circular MotionEasy
Question
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
Options
A.its velocity is constant
B.its acceleration is constant
C.its kinetic energy is constant
D.it moves in a straight line.
Solution
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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