Aball 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

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