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A rubber cord has a cross -sectional are...

A rubber cord has a cross -sectional area `1 mm^(2)`and total un-stretched length`10.0cm`. It is stretched to `12.0 cm` and then released to project a missile of mass 5.0 g. Taking young's modulus Y for rubber as `5.0xx10^(8) N//m^(2)`.Calculate the velocity of projection .

A

5 `ms^(-1)`

B

10 `ms^(-1)`

C

20 `ms^(-1)`

D

40 `ms^(-1)`

Text Solution

Verified by Experts

The correct Answer is:
C
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