- Homework Statement
- 85. Assume a cyclist of weight mg can exert a force on the
pedals equal to 0.90 mg on the average. If the pedals rotate
in a circle of radius 18 cm, the wheels have a radius of 34 cm,
and the front and back sprockets on which the chain runs
have 42 and 19 teeth respectively (Fig. 31), determine the
maximum steepness of hill the cyclist can climb at constant
speed. Assume the mass of the bike is 12 kg and that of the
rider is 65 kg. Ignore friction. Assume the cyclist’s average
force is always: (a) downward; (b) tangential to pedal motion.
- Relevant Equations
can I get some tips on how to approach this problem ? I don't get where I should start on this one.