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A stone tied at the end of a string 80 c...

A stone tied at the end of a string 80 cm long is whirled in a horizontal circle with a constant speed. If the stone makes 25 revolutions in 14 s, what is the magnitude of acceleration of the stone ?

A

`90 m s^(-2)`

B

`100 m s^(-2)`

C

`110 m s^(-2)`

D

`120 m s^(-2)`

Text Solution

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The correct Answer is:
B
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NCERT FINGERTIPS-PRACTICE PAPERS-Practice Paper 3
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