Q.

Find the average velocity when a particle complete the circle of radius 1m in 10 s.

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a

2 ms-1

b

3.14 ms-1

c

6.28 ms-1

d

Zero

answer is D.

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Detailed Solution

When a particle completes 'one revolution in circular motion, then average displacement travelled by particle iszero.Hence, average velocity                                 = average displacement Δt=0Δt=0
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