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pennyfx
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A disk of radius .12 m starts accelerating from rest at 8 rad/s^2 At t = 5s
A)What is the Angular Velocity
This one is easy.. Av = 8rad/s^2*5 = 40 rad/s
And makes sense.
B)What is the tangential Accel?The book gave answer of .96 m/s^s Therefor, i assumed that the equation is At = w*r w=omega which is 8 rad/s^2 * .12m = .96 m/s^2
However, later I found an equation for At given as At=dv/dt
What gives? Which equation is correct for Tangential Accel? If they are both correct then how would I use At=dv/dt?
Thanks
A)What is the Angular Velocity
This one is easy.. Av = 8rad/s^2*5 = 40 rad/s
And makes sense.
B)What is the tangential Accel?The book gave answer of .96 m/s^s Therefor, i assumed that the equation is At = w*r w=omega which is 8 rad/s^2 * .12m = .96 m/s^2
However, later I found an equation for At given as At=dv/dt
What gives? Which equation is correct for Tangential Accel? If they are both correct then how would I use At=dv/dt?
Thanks