Question

a gun of mass 3000kg fires a shell of mass 5kg in horizontal direction .the gun recoils at 0.4m/s .calculate the velocity of the shell class 11th physics ​

Answer 1

Answer:

240 m/s

Explanation:

Mass of gun=m1=3000kg

mass of shell=m2=5Kg

initital velocity of gun=0

final velocity of gun=0.4m/s

intial velocity of shell=V

final velocity of shell=0

applying law of conservation of momentum

$3000 \times 0 + 5v = 3000 \times 0.4 + 0$

on solving we get v=240m/s