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A lead bullet strikes against a steel pl...

A lead bullet strikes against a steel plate with a velocity `200ms^-1`. If the impact is perfectly inelastic and the heat produced is equally shared between the bullet and the target, thent he rise in temperature of the bullet is (specific heat capacity of lead `=125Jkg^-1K^-1`)

A

`80^(@)C`

B

`60^(@)C`

C

`160^(@)C`

D

`40^(@)C`

Text Solution

Verified by Experts

The correct Answer is:
A
Heat produced `=ms DeltaT=(1)/(2)((1)/(2)mv^(2))`
`rArr DeltaT=(v^(2))/(4s)=((200)^(2))/(4xx125)=(4xx10^(4))/(4xx125)=80^(@)C`
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