Homework Help: Physics

Posted by paige on Friday, April 8, 2011 at 12:58pm.

You are riding a bicycle at a speed of 15 m/s. The bycicle has tires with diameters measuring 630 mm. You can approximate each tire as a solid cyllinder (to calculate inertia) with a mass of 0.5 kg. What is the total rotational kinetic energy of the bicycle?

Physics - drwls, Friday, April 8, 2011 at 1:09pm
Total rotational KE = 2 I w^2

I = M*R^2 is the moment of inertia of ONE tire

w = V/R is the tire angular velocity

R = 0.315 m

You do the numbers

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