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- 7 please need assistance16 Please help thank youA mass m is on a frictionless incline of height H, angle , as shown in the picture. The mass slides down the incline. (a) At the bottom of the incline, what is the speed of the mass? (b) If instead of being frictionless, there is a coefficient of kinetic friction, uk, between the incline and the block, at the bottom of the incline, what is the speed of the mass now?