A cyclist intends to cycle up a 7.8o hill whose vertical height is 150m. Assuming the mass
Question:
(a) Calculate how much work must be done against gravity.
(b) If each complete revolution of the pedals moves the bike 5.1m along its path, calculate the average force that must be exerted on the pedals moves the bike 5.1m along its path calculate the average force that must be exerted on the pedals tangent to their circular path. Neglect work done by friction and other losses. The pedals turn in a circle of diameter 36 cm.
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a The work done against gravity is the change in PE W ag...View the full answer
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