A particle is moving with constant speed in a circular path. When the particle turns by an angle 90°, the ratio of instantaneous velocity to its average velocity is 
. The value of x will be
Text Solution
Verified by ExpertsThe correct answer is:
A
In circular motion with constant speed, magnitude of instantaneous velocity, 
.
Time taken to turn by 90° will be 
Displacement will be equal to the length of AB 
Average velocity
Hence required ratio
Therefore, cc = 2.
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