Centripetal Acceleration

Question

Here is my question:

You are whirling a ball attached to a string such that you describe a circle of radius $75$ cm, at a velocity of $1.50$ m/s. What is the acceleration of the ball?

Could you show an equation to solve it?

My idea:

$$F_{\text{centripetal}} = \frac {v^2}{r}m$$

Regards!

score 0 · Accepted Answer · answered Oct 14 '17 at 11:00

0

$$F=ma=\frac{mv^2}{r}$$ $$a=\frac{v^2}{r}$$

answered Oct 14 '17 at 11:00

Harry Alli

2,091

Thanks, I solved the problem from your equation. – Morata Oct 14 '17 at 11:02

score 0 · Answer 2 · answered Oct 14 '17 at 11:00

0

The centripetal acceleration is give by

$$a=\frac{v^2}{r}$$

answered Oct 14 '17 at 11:00

velut luna

9,961

@Denayer I don't understand why you need to derive the formula for centripetal acceleration, which is more fundamental, from the formula of centripetal force, which is in fact a result of the former! – velut luna Oct 14 '17 at 11:21

Centripetal Acceleration

2 Answers2