Starting from rest, a 10.5 kilogram block slides 2.70 meter down a frictionless ramp (inclined at 30.0 degree from the floor) to the bottom. The block then slides an additional 4.90 meter along the floor before coming to a stop.
(a) Find the speed of the block at the bottom of the ramp.
m/s
(b) Find the coefficient of kinetic friction between block andfloor.
(c) Find the mechanical energy lost due to friction.
J