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The kinetic energy of a particle executi...

The kinetic energy of a particle executing SHM is 16J. When it is in its mean position. If the amplitude of oscillation is 25cm and the mass of the particle is 5.12 kg, the time period of its oscillation in second is

A

`(pi)/(5)sec`

B

`2pi sec`

C

`20pi sec`

D

`5pi sec`

Text Solution

Verified by Experts

The correct Answer is:
A
`K_(max)-U_(max)=(1)/(2)kA^(2)` `Rightarrow` `k=(2xx16)/(0.25)^(2)=512N//m`
`T=2pisqrt((m)/(k))=2pisqrt((5.12)/(512))=(2pi)/(10)=(pi)/(5)s`.
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