A hockey puck with a mass of 0. 18 kg travels at a velocity of 40 m/s toward a goalkeeper. The goalkeeper mass of 120 kg and is at rest. Assuming a closed system, find the total momentum of the puck before the caught by the goalkeeper. (1 point)

Answer 1

The momentum of an object is given by the formula:

momentum = mass * velocity

Given that the mass of the hockey puck is 0.18 kg and its velocity is 40 m/s, we can calculate its momentum:

momentum of the puck = 0.18 kg * 40 m/s = 7.2 kg*m/s

Since the system is closed, the total momentum before the goalkeeper catches the puck will be equal to the momentum of the puck. Therefore, the total momentum of the system is 7.2 kg*m/s.