Kinematics Question 482
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 [IIT 1987]
Options:
A) velocity is constant
B) acceleration is constant
C) Kinetic energy it’s constant
D) It moves in a circular path
Show Answer
Answer:
Correct Answer: C
Solution:
In the given condition, the particle undergoes uniform circular motion and for uniform circular motion the velocity and acceleration vector changes continuously but kinetic energy it’s constant for every point.
