physics
posted by Lilith .
A 40cm diameter wheel accelerates uniformly from 240 rpm to 360 rpm in 6.5s. How far (linearly) will a point on the edge of the wheel have traveled in this time?

physics 
bobpursley
Linearly? It travels in an arc. The arc distance is (360+240)/2 * 2PI*20cm*6.5/60
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