Question

8.
A boy whirls a ball on a string in a horizontal circle of radius 1m. What must be
the number of revolutions per minute so that its centripetal acceleration is
numerically equal to g
(a) 0.5 (b)2
(C) 30
(d) 120
(e) 160​

Answer 1

Answer:

(C) 30

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Answer 2

Explanation:

So the ans = c)30

Hope this helps you