A 500 g ball swings in a vertical circle at the end of a 1.5-m-long string. When the ball is at the bottom of the circle, the tension in the string is 10 N. What is the speed of the ball at that point?

3.91m/s

Explanation:

The mass of the ball(m)=500g = 0.5kg

The radius of the string is(r)=1.5m

The tension in the string is(T)=10N

The acceleration due to gravity =

The tension in the string when the body is at the bottom is given by

To find the speed of the ball, we make v the subject of the formula

Therefore,

≈  3.91m/s

Therefore, the speed of the ball is 3.91m/s

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