MHT CET 2024 Physics question
A lead bullet moving with velocity 'V' strikes a wall and stops. If 75% of its energy is converted into heat, then the increase in temperature is (s = specific heat of lead, J - mechanical equivalent of heat)
Answer: (1)
Solution
Kinetic energy of the bullet of mass : . Heat produced (in calories) . This heat raises the temperature of the bullet: .
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