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Exercise: Consider a block of mass 4kg propelled with an initial velocity of 5m/s up an inclined plane of 30. If the coefficient of kinetic friction is 0.5 between the particle and the incline surface, determine the time it will take for the block to stop. Exercise: Two blocks A and B are released from rest on a 30 incline when they are 24m apart, as shown. The coefficient of friction under the upper block A is 0.25, and that under the lower block B is 0.35. Compute the elapsed time until the blocks touch each other