Question

From a rifle of mass 4 kg, a bullet of mass 50 g is fired with an initial velocity of 35 . Calculate the initial recoil velocity of the rifle.

Answer 1

Answer:

0.43m/s

Explanation:

recoil velocity formula for rifle and bullet

is mass of bullet × velocity of bullet/mass of rifle=velocity of rifle

Answer 2

we know that horzontally no force is acting on system (considering gun and bullet in system) so initial momentum =final momentum

mu=MV

.05×35=4×V

V=1.75/4

V=0.435

here V is the speed of gun and also recoil velocity