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A force of 6.4N streches a vertical spri...

A force of `6.4N` streches a vertical spring by `0.1m` The mass that must be supended from the spring so that it oscilation with a time period of `pi//4` second

A

`(pi)/4 kg`

B

`4/(pi) kg`

C

`1 kg`

D

10 kg

Text Solution

Verified by Experts

The correct Answer is:
C
Spring constant `K= (6.4)/(0.1) =64 N//m`
Now `T=2pisqrt(m/k)` or `pi/4 =2pisqrt(m/64) :. M=1 kg `
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