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A stone of mass 50 g is being rotated in...

A stone of mass `50 g` is being rotated in a circle of radius `50 cm` with a uniform speed of `2 m//s`. What is the acceleration of the stone ?

A

10 units

B

9 Units

C

12 units

D

8 Units

Text Solution

Verified by Experts

The correct Answer is:
D
Here, `m = 50 g, r = 50 cm = 0.5 m`
`v = 2 m//s, a = ?`
Acceleration, `a =` centripetal acceleration `= (v^(2))/(r ) = (2 xx 2)/(0.5) = 8 m//s^(2)`
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