Question

13. A child throws a 6.9 kg package horizontally from a boat with a speed of 10.0 m/s. Calculate the resulting recoil velocity of the boat if assuming it was initially at rest. The mass of the child is 25 kg and that of the boat is 55 kg. (.863m/s)​

Answer 1

0.863 m/s

Step-by-step explanation:

This is a conservation of momentum problem.

Momentum = p = mv

(6.9 kg)(10 m/s) = (25 kg + 55 Kg)(v)

69 kg·m/s = (80 kg)v

v = (69 kg·m/s)/(80 kg) = 0.863 m/s