Tuesday
July 29, 2014

Homework Help: Physics

Posted by . on Thursday, September 30, 2010 at 3:08pm.

Some sliding rocks approach the base of a hill with a speed of 11.0 m/s. The hill rises at 44.0 degrees above the horizontal and has coefficients of kinetic and static friction of 0.410 and 0.630, respectively, with these rocks.

1) Find the acceleration of the rocks as they slide up the hill.
2) If it slides down, find its acceleration on the way down, else enter 0.

Incorrect answers that I tried:

1) -11.2
2) 2.37

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