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Hail stone fall from certain heigh. If o...

Hail stone fall from certain heigh. If only `2%` of the mass of the hail stone melt on reaching the ground,, the height from which they fall is (`g=10ms^(-2), L=80 call//gm` and `J=4.2J//cal`)

A

`33.6 km`

B

`67.2 km`

C

`672 m`

D

`336 m`

Text Solution

Verified by Experts

The correct Answer is:
C
`mgh=JmLimpliesh=(JL)/(g)`
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