Proposition. You and your friends are learning to play hockey, and you decide to use physics...

Proposition.

You and your friends are learning to play hockey, and you decide to use physics to get better by analyzing your movements. You are skating directly towards your friend at (5.98, 0) M/S who is also skating directly towards you to get the puck at a constant velocity of (-2.7, 0) M/S, and both of you reach the puck at the same time, so you collide and stick together. At the same time your hockey helmet with a mass of 5 kg goes flying away with a velocity of (0, 2.68) m/s. You have a mass of 74 Kg, your friend has a mass of 68 kg.

The questions:

1) In vector form, what is you and your friends velocity after you collide?

2) after the collision the puck is not moving on the ice and another player hits the puck towards the goal. If the average hockey player can apply a force of 80N over a 0.1s time and the goal is 15m away then provide evidence of whether or not the puck will reach the goal. the frictional force a puck experiences is 10N and the mass of a puck is .25kg. Consider friction in this case since the puck is made of a rough material.

Please show all work and explain why you are using the equations you are using !! Thank you so much. My physics teacher doesn't teach at all.

Solutions

Expert Solution

use momentum conservation.

genius_generous answered 2 weeks ago

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