A boy is sledding down a snow covered hill inclines at 35 degrees. The combined mass of the boy and his sled is 125 kg and the coefficient of kinetic...

A boy is sledding down a snow covered hill inclines at 35 degrees. The combined mass of the boy and his sled is 125 kg and the coefficient of kinetic friction between the sled and the snow is .267. Find the acceleration of the boy and the sled.