Question

21. A bullet of mass 0.01kg fired by a gun of mass 10kg. If the velocity of
the bullet is 50 m/s then recoil velocity of the gun is​

Answer 1

Answer:

-50000m/s

Explanation:

m1= mass of gun.

m2= mass of bullet.

u1,v1= initial and final velocities of gun.

u2,v2= initial and final velocities of bullet.

m1u1+m2u2=m1v1+m2v2

u1=0; u2=0

So,

0=m1v1+m2v2

Recoil velocity v2= -(m1/m2)v1.

v2= -(10/0.01)50

v2= -50000m/s