Sunday
April 20, 2014

Homework Help: Physics

Posted by Alexandra on Sunday, November 25, 2012 at 4:02pm.

If the puck strikes the goalie's pads and stops in a distance of 4.14 cm, what average force is exerted on the pads? Answer in units of N.
This is part three of three parts.
1st Part: A player strikes a hockey puck giving it a velocity of 39.486 m/s. The puck slides across the ice for 0.231s after which time its velocity is 38.666 m/s. The acceleration of gravity is 9.8 m/s^2. If the mass of the puck is 209 g, what is the average drag force on it by the ice? The answer is: -0.74190 N.
2nd Part: What is the coefficient of kinetic friction for the puck sliding on ice? The answer is 0.3622228112.
I would REALLY appreciate any help! Thanks<3

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