Jul12-12, 08:38 PM
1. The problem statement, all variables and given/known data
A wheel has bicycle of diameters 109.0 cm. The bicyclist accelerates from rest with constant acceleration to 16.3 km/hr in 16.5 s. What is the angular acceleration of the wheels?
2. Relevant equations
3. The attempt at a solution
I think I'm doing it right, however, I was hoping someone might check my logic
First I convert diameter 109 cm to radius .545 m and 16.3 km/hr to 4.527 m/s.
I solve for w using linear speed divided by r = 4.527/.545 = 8.3078 rad/s
Solve for alpha using a = (wf-wi)/t = (8.3078-0)/16.5 s = .5035 rad/s^2
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