A lead bullet, of initial temperature 27° C and speed 'v' kmph penetrates into a solid object and melts. If 50% of the kinetic energy is used to heat it, the value of V in kmph is (for leads melting point = 600K, latent heat of fusion = 2.5 xx 10^(-4) "Jkg"^(-1), specific heat = 125 "J kg"^(-1) K^(-1) )

A lead bullet, of initial temperature 27° C and speed 'v' kmph penetr

1.	A lead bullet, of initial temperature 27° C and speed 'v' kmph penetrates into a solid object and melts. If 50% of the kinetic energy is used to heat it, the value of V in kmph is (for leads melting point = 600K, latent heat of fusion = 2.5 xx 10^(-4) "Jkg"^(-1), specific heat = 125 "J kg"^(-1) K^(-1) )
Answer» 1800 3600 1200 1000 Answer :A