Question

8. Jax bounced a dodgeball off a wall. The dodgeball has a momentum of 32.6 kg · m/s after the

collision. What is the total momentum of the system before the collision?

Answer 1

`32.6\ \text{kg m/s}`

Step-by-step explanation:

`p_f` = Final momentum of the system =
`32.6\ \text{kg m/s}`

According to the principle of conservation of angular momentum we have

`p_i=p_f\\\Rightarrow p_i=32.6\ \text{kg m/s}`

The wall is not moving so the initial and final momentum of the system are equal.

So, the total momentum of the system before the collision is
`32.6\ \text{kg m/s}`.