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A wheel having radius 10cm is coupled by...

A wheel having radius 10cm is coupled by a belt to another wheel of radius 30cm. `1^(st)` wheel increases its angular speed from rest at a uniform rate of `1.57 rads^(-2)`. The time for `2^(nd)` wheel to reach a rotational speed of 100 rev/min is....(assume that the belt does not slip)

A

20 sec

B

10 sec

C

1.5 sec

D

15 sec

Text Solution

Verified by Experts

The correct Answer is:
A
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