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April 17, 2014

Homework Help: Physics 12

Posted by solexgirl12 on Tuesday, October 28, 2008 at 8:03pm.

This came up on our test review for tomorrow, and I'm stumped!

"A hockey puck of mass 0.51 kg is moving north across the ice with a speed of 32 m/s. If it is hit with a hockey stick so as to make it travel due west at the same speed, what is the magnitude of the impulse delivered to the puck?"

My FBD shows the puck bouncing off the stick and heading in a unknown direction at 32 m/s. I found the momentum of the puck to be p=16.32, but I can't seem to calculate the magnitude. Can anyone help me?

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