Question

When an air rifle is fired, it exerts an impulse of 0.019 Ns on the pellet.
The pellet has a mass of 1.1 × 10–4 kg.
(a) Determine the speed with which the pellet leaves the rifle.

(b) Determine the kinetic energy of the pellet as it leaves the rifle.

Answer 1

Answer:

sorry don't know,,,,,,,,,,,,,,,,,,,,,,

Answer 2

Answer172.73

Explanation:

a. impulse=change in momentum

   0.019=1.1*10^-4*v

    =172.73m/s

b. K.E=1/2 mv^2

         =1/2*1.1*10^-4*(172.73)^2

         =7545.6J