A particle is moving with constant speed v in a circle what is the magnitude of average velocity after one fourth rotation
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Answer:
The particle starts from point P and after half rotation, it reaches at Q via path PMQ.
Distance covered by particle to reach at Q is d=πR
Time taken, t=
v
d
=
v
πR
Displacement of the particle, s=PQ=2R
∴ Average velocity, v
avg
=
t
s
=
v
πR
2R
=
π
2
v
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