Question

a hunter fires a bullet of 0.01kg with a velocity 400m/s from a gun of mass 8kg what will be the recoil velocity of the gun?​

Answer 1

Here's your Answer. Tell me if it's correct or not

Answer 2

m1u1 + m2u2 = m1v1 +m2v2

therefore,

0.01 X 0 + 8 X 0 = 0.01 X 400 + 8 X v2

0 = 4 +8v2

-4 = 8v2

-4/8 = v2

v2= -1/2

v2 = -0.5 m/s