In the figure, a 1 kg block slides along a frictionless track from one level to a higher level after passing through an intermediate valley. At the higher level, the surface has a coefficient of kinetic friction μk = 0.5. This friction force stops the block in a distance d = 2 m. The height difference h = 1 m. Find initial velocity vo. a) 1.20 m/s b) 2.24 m/s c) 20.15 m/s d) 0.33 m/s e) 6.26 m/s
