a 50 kg block and a 100 kg block are connected by a string. The pulley is frictionless and of negligible mass. The coefficient of kinetic friction...

a 50 kg block and a 100 kg block are connected by a string. The pulley is frictionless and of negligible mass. The coefficient of kinetic friction between mass 1 and teh ramp is 0.25. DCetermine the change in kinetic energy of teh 50 kg block as it moves from a to b, a distance of 20 m