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December 20, 2014

Homework Help: physics please respond

Posted by leeann on Sunday, May 27, 2012 at 3:58am.

A 16kg sled starts up a 28 degree incline with a speed of 2.4 m/s . The coefficient of kinetic friction is = 0.27.
part a)How far up the incline does the sled travel?

part b)What condition must you put on the coefficient of static friction if the sled is not to get stuck at the point determined in part (a)? i got 0.53.

part c)If the sled slides back down, what is its speed when it returns to its starting point

can you please do me a favor and write out the work and the final answer. for some reason when i do it it comes out with the wrong final answer.

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