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April 21, 2014

April 21, 2014

Posted by **Nick** on Tuesday, February 21, 2012 at 1:31am.

- Physics -
**drwls**, Tuesday, February 21, 2012 at 1:40amWeight component downhill = air resistance at 6.2 km/h

(You know that from the constant coasting speed)

When going uphill at the same speed, the uphill force must equal the sum of the weight downhill component and the air resistance. That sum will be TWICE the weight component downhill.

F = 2 M g sin7 = 81.2 N

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