Answer to Question #318281 in Physics for Jiren

Question

The ball is tied to a string to whirl it having a radius of 40.0 cm at a velocity of 2.5 m/s. What will be

the acceleration of the ball?

Answer 1

The acceleration of the ball will be

$$a=v^2/r=2.5^2/0.4=15.6\text{ m/s}^2.$$