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A 10 kg collar is attached to a spring (...

A 10 kg collar is attached to a spring (spring constant 600 N/m.), it slides without friction over a horizontal rod. The collar is displaced from the equilibrium position by 20 cm and released. What is the speed of the oscillation ?

A

`sqrt(60)xx0.2" m"//"s"`

B

`60xx0.2" m"//"s"`

C

`60xx2" m"//"s"`

D

`6xx0.2" m"//"s"`.

Text Solution

Verified by Experts

The correct Answer is:
A
P.E. at extreme position = K.E. at mean position
`:. (1)/(2)kx^(2)=(1)/(2)mv^(2)`
`:." "v=sqrt((kx^(2))/(M))`
`v=sqrt((600)/(10)).(20)/(100)`
`v=sqrt(60)xx0.2" m"//"s"`
So correct choice is (a).
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