Question

A bullet of mass 10kg is fired from a gun of mass 6kg with a velocity of 300m/s. The recoil velocity of the gun is ?

Answer 1

Answer:

500m/s

Step-by-step explanation:

imagine that,

bullet of mass=m1

u of bullet = 0

velocity of bullet =v1= 300m/s

gun of mass=m2

we'll need to find velocity of gun(imagine velocity of gun= v2)

we know that

m1u1+m2u2=m1v1+m2v2

10×0+6×0=10×300+6v2

0=3000+6v2

-6v2=3000 (having 6v2 to left side)

-v2=3000/6

-v2=500

v2= -500 (ans) (the ans is - bcz the gun will go to the back side)

thanks