5 A lead bullet of initial temperature 27 C and speed v kmh

Last updated: 6/9/2023

5 A lead bullet of initial temperature 27 C and speed v kmh penetrates into a solid object and melts If 50 of the kinetic energy is used to heat it the value of v in km h is for lead melting point 600 K latent heat of fusion 2 5 x 104 Jkg specific heat 125 Jkg K a 3600 b 1800 c 1200 d 1000