Determine at what speed will she be going

Reference no: EM13508745

Sarah and her bicycle have a total mass of 40 kg. Her speed at the top of a 10 m high and 100 m long hill is 5 m/s. If the force of friction on her way down is 20 N, at what speed will she be going when she reaches the bottom?

Reference no: EM13508745

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