The rear-wheel-drive lawn mower, when placed into gear while at rest, is observed to mom...

The rear-wheel-drive lawn mower, when placed into gear while at rest, is observed to momentarily spin its rear tires as it accelerates. If the coefficients of friction between the rear tires and the ground are μ_s = 0.70 and μ_k = 0.50, determine the forward acceleration a of the mower. The mass of the mower and attached bag is 50 kg with center of mass at G. Assume that the operator does not push on the handle, so that P = 0.