Question

a bullet of mass log is fired at speed of 400m/s from a gun of mass 4 kg. what isvrecoil velocity of gun​

Answer 1

Answer:

1 m/s

Explanation:

(air resistance negleced) ;

as, we know momentum of system(gun+bullet) is conserved ;

initial momentum = finial momentum

let the recoil velocity of gun = v

0.01*0 + 4*0 = 0.01*400 + 4*v

v = -1m/s

hence gun recoil with velocity 1m/s