Question

A loaded gun is dropped on a frozen lake. The gun fires, with the bullet going horizontally in one direction and the gun sliding on the ice in the other direction. The bullet's mass is 0.04 kg, and its speed is 285 m/s. If the gun's mass is 2.3 kg, what is its speed (in m/s)?

Answer 1

Answer:

4.96m/s

Explanation:

Using mv = m'v'

m = 0.04kg

v = 285 m/s

m' = 2.3kg

v'= ?

0.04×285 = 2.3v'

V' = 11.4/2.3

= 4.96m/s