- #1
balletgirl
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Homework Statement
A 70cm diameter wheels accelerates uniformly from 160 rpm to 280 rpm in 4.00s.
Determine:
a) it's angular acceleration, and
b) the radial and tangential components of the linear acceleration of a point on the edge of the wheel 2.00s after it has started accelerating
a=?
w2= 280rpm
w1= 160rpm
t = 4.0s
d= .7m
Homework Equations
a = w2-w1 / t
The Attempt at a Solution
I used that equation for part a, with a= 280rpm - 160rpm /4.0s
and got a= 30 , but I don't feel that is right. Is there a better equation I could have used?