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BMWPower06
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Homework Statement
If a bicyclist of mass 68.0 kg (including the bicycle) can coast down a 6.90 degree hill at a steady speed of 5.80 km/hr because of air resistance, how much force must be applied to climb the hill at the same speed (and the same air resistance)?
Homework Equations
The air resistance equations don't seem to apply.
F=MA as always
The Attempt at a Solution
I drew the FBD, tried to sum the forces and got:
The sum of forces in x= mgsino-Fa (force of air resistance)= ma
Sum of forces in y= N-mgcoso=0
Can anyone help me out?
Thanks