A ball on a string is swung at a constant speed of 3m/s in a horizontal circle. if the string is 1.25m long what is the centripetal acceleration of the ball?

The centripetal acceleration of the ball swung at constant speed is, a = 7.2 m/s²

Explanation:

Given data,

The speed of the ball, v = 3 m/s

The length of the string, r = 1.25 m

The centripetal acceleration of the ball swung at constant speed is given by the formula,

a = v² / r

= 3² / 1.25

= 7.2 m/s²

Hence, the centripetal acceleration of the ball swung at constant speed is, a = 7.2 m/s²