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 -

Options

A. 2 gm of ice
B. 20 gm of ice
C. 200 gm of ice
D. 2 kg of ice

Answer

C

Explanation

Mgh = mL `rArrm=(Mgh)/(L)=(3.5xx10xx2000)/(3.5xx10^(5))=0.2kg`