A student has two ramps, both of which are at an angle 25°. Ramp 1 is frictionless and ramp 2 has friction. The student also has two blocks, one for each ramp. She pushes the blocks up the ramps with the same initial velocity. The block on ramp 2 only travels a fraction f = 0.610 as far as the block on ramp 1 before coming to a stop (i.e. d2 = 0.610*d1) . Find the coefficient of sliding friction between the block and ramp 2. Use three significant figures when entering your answer.

## This question was asked on Jan 30, 2013.

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