CAPE Physics Unit 1 · 2007 · Paper 1 · Question Q5
A body moves in a circle of radius r with centripetal acceleration, a. Its velocity is v, and angular frequency is \omega. Which of the following equations for a are correct?
I. a = \frac{v^2}{r}
II. a = r^2 \omega
III. a = v\omega
- (A)I, II and III
- (B)I and II only
- (C)I and III only
- (D)II and III only
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