A worker develops a tension T in the cable as he attempts to move the 41-kg cart up the 19° incline. Determine the resulting acceleration a of the cart if (a) T = 120 N and (b) T = 158 N. Neglect all friction, except that at the worker's feet. The acceleration a is positive if up the slope, negative if down the slope.

A worker develops a tension T in the cable as he attempts to move the 41-kg cart up the 19° incline. Determine the resulting acceleration a of the cart if (a) T = 120 N and (b) T = 158 N. Neglect all friction, except that at the worker's feet. The acceleration a is positive if up the slope, negative if down the slope.