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Q8. A starter motor with 8 teeth engages with a flywheel rim having 128 teeth. The starter motor pinion mass is 10 kg with a radius of gyration of 0.1 m and the engine rotational mass is 400 kg with an effective radius of gyration of 0. 5 m.

The engine must be accelerated to 320 rev/min from rest in EIGHT seconds.

Calculate EACH of the following:

(a) the angular acceleration of the starter motor. (6)

(b) the average driving power required by the starter motor. (10)