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1. A 240-kg motorcycle and 70-kg rider are travelling on a horizontal road. The air resistance acting on the rider-bike system is 1280 N

1. A 240-kg motorcycle and 70-kg rider are travelling on a horizontal road. The air resistance acting on the rider-bike system is 1280 N [backward]. The coefficient of kinetic friction between the road and the bike is 0.60. (a) What force is moving the bike forward? (b) If the bike is travelling at a constant velocity what is the forward force on the bike? (c) If the bike is accelerating at a rate of 2.16 m/s [forward] what is the forward force on the bike?

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