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A wheel on a moving car slows uniformly from 420 rpm to 120 rpm in 4 sec.

A. What is the angular acceleration of the wheel?

B. What is the angular displacement? How many revolutions?

C. How far does the car travel if the radius of the wheel is 0.20cm?

1 answer

angular acceration=(120-420)/4 in rpm/sec

now to change that to radians/sec^2
multipy by 2PI/60 to get rad/sec^2

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