Questions on rotational motion? Any help would be appreciated because I don't understand any of it. Thanks!
1. A wheel rotates on a stationary axle. If its angular speed doubles, the centripetal acceleration of the rim will
a. quadruple
b. double
c. half
d. remain the same
2. What's the angular speed of a wheel that makes 50 revolutions in 10 seconds? Give answer in radians per second.
a. 10 seconds
b. 5 seconds
c. 5pi seconds
d. 10pi seconds

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@ujjwal i think for #3 it is the angular acceleration

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