Question: 1. The impulse-momentum theorem can help explain why helmets protect people's head during impact. Consider a skier whose head strikes a hard object. Let's

1. The impulse-momentum theorem can help explain why helmets protect people's head

1. The impulse-momentum theorem can help explain why helmets protect people's head during impact. Consider a skier whose head strikes a hard object. Let's say the person is moving at a velocity of 7.5 m/s and that the mass of their head is 3.8 kg. Let's assume the person's head comes to rest as a result of the collision. Calculate the magnitude of the change in velocity of the skier's head.

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