A hockey puck with a mass of 0.16 kg travels at a velocity of 40 m/s toward a goalkeeper. The goalkeeper has a mass of 120 kg and is at rest. Assuming a closed system, find the total momentum of the goalkeeper and puck after the puck is caught by the goalkeeper. In 3-4 sentences, identify the object with the greater momentum after the puck is caught and explain your reasoning.(4 points)
No PLAGURISM
The total momentum of the system before the puck is caught can be determined by adding the momentum of the hockey puck and the momentum of the goalkeeper. The momentum of the hockey puck is calculated by multiplying its mass (0.16 kg) by its velocity (40 m/s), resulting in 6.4 kg m/s. The momentum of the goalkeeper is 0 kg m/s since they are at rest.
After the puck is caught, the total momentum of the system will still be the same, based on the law of conservation of momentum. Since the momentum of the hockey puck is 6.4 kg m/s and the momentum of the goalkeeper is still 0 kg m/s, the object with greater momentum remains the hockey puck. This is because the momentum of the goalkeeper does not change, while the momentum of the puck is transferred completely to the goalkeeper when caught.