Homework Help: physics

Posted by Anonymous on Saturday, April 21, 2012 at 12:54pm.

A 2 kg metal plate slides down a 11-meter high slope. At the bottom its speed is 7.5 m/s. To the nearest Joule, what was the magnitude of the work done by friction?If the slope in the above problem is 22 degrees, what is the coefficient of friction?

physics - bobpursley, Saturday, April 21, 2012 at 12:59pm
InitialPE-friction=final KE

solve for friction work.

Now, friction work= mu*mg*cosTheta*11meters
solve for mu.

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