Bicycle mechanics Refer to Exercise. An expert cyclist can attain a speed of 40 mi/hr. If...

Bicycle mechanics Refer to Exercise. An expert cyclist can attain a speed of 40 mi/hr. If the sprocket assembly has r1 = 5 in., r2 = 2 in., and the wheel has a diameter of 28 inches, approximately how many revolutions per minute of the front sprocket wheel will produce a speed of 40 mi/hr? (Hint: First change 40 mi/hr to in./sec.)

Bicycle mechanics The sprocket assembly for a bicycle is shown in the figure. If the sprocket of radius r1 rotates through an angle of θ1 radians, find the corresponding angle of rotation for the sprocket of radius r2.

EXERCISE