A car moves on a circular path of radius 10 metre. It complete 5 revolution in 5

Question

A car moves on a circular path of radius 10 metre. It complete 5 revolution in 5 minute. What is its average speed?

Options:

A . 10 π m / minute

B . 20 π m / minute

C . 30 π m / minute

D . 5 π m / minute

Answer: Option B
:
B
The linear speed is,
v = r

ω

;

ω

\frac{θ}{t}

Substituting, we get,
v=20

π

m / minute

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