Question 2: (a). 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 μs = 0.7 and μk = 0.5. Determine the forward acceleration 'a' of the mower. The mass of the mower and attached bag is 50 kg with centre of mass at G. Assume that the operator does not push on the handle, so that P=0. P 900 mm wwwwwwwwwwww.www. W215 mm 1000 mm B 500 C mm 200 mm Figure 2 (b). Define and explain the difference between compound gear train and planetary gear train. Explain your answer with three examples of each type. Draw sketches where requires.

Question 2: (a). 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 μs = 0.7 and μk = 0.5. Determine the forward acceleration 'a' of the mower. The mass of the mower and attached bag is 50 kg with centre of mass at G. Assume that the operator does not push on the handle, so that P=0. P 900 mm wwwwwwwwwwww.www. W215 mm 1000 mm B 500 C mm 200 mm Figure 2 (b). Define and explain the difference between compound gear train and planetary gear train. Explain your answer with three examples of each type. Draw sketches where requires.