Questions
A bullet made of lead moving with velocity v, hits a wall. Its 50 % kinetic energy is converted into heat, then increase in temperature will be : (sspecific heat, J mechanical equivalent of heat)
detailed solution
Correct option is B
12mv2×50100=(m×s×Δθ)×J⇒Δθ=v24JsTalk to our academic expert!
Similar Questions
An ice block of mass 8 kg is dragged along a rough horizontal surface (=0.4) uniformly through 42 m. If all the heat produced is completely absorbed by block then mass of ice that melts is ( L= 80 cal/gm, g = 10m/s2)
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