Question

a bullet if mass m/n is fired with a velocity v from a gun of mass m kg, then the recoil velocity of the gun?​

Answer 1

Answer:

ANSWER

Let V and v be the recoiling speed of the gun and velocity of the bullet respectively.

Conserving the momentum, we get

⇒mv−MV=0

⇒V=mv/M

Now conserving the energy, we get

⇒0.5×kd

2

=0.5×MV

2

⇒V

2

=kd

2

/M

⇒(mv/M)

2

=kd

2

/M

⇒v=

m

d

kM