A student has two ramps, both of which are at an angle 27. Ramp 1 is frictionless and ramp 2 has friction. The student also has two blocks, one for...

A student has two ramps, both of which are at an angle 27°. 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 fractionf=0.680as far as the block on ramp 1 before coming to a stop (i.e.d2 =0.680*d1) . Find the coefficient of sliding friction between the block and ramp 2. Use three significant figures when entering your answer.