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A stationary objected at 0^(@)C and ...

A stationary objected at `0^(@)C` and weighing 3.5 kg falls from a height of 2000m on a snow mounation at `0^(@)C`. If the temperature of the object just before hitting the snow is `0^(@)C` and the object comes to rest immediately `(g = 10 m//s^(2))` and (latent heat of ice = `3.5 xx 10^(5) "joule"//s)` then the mass of ice that will melt is -

A

2kg

B

200 g

C

20 g

D

2 g

Text Solution

Verified by Experts

The correct Answer is:
B
mgh = m. L `rArr m = (3.5 xx 10 xx 2000)/(3.5 xx 10^(5)) = 0.2 kg`
`rArr m. = 200 g`.
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