Question

A ball that has a mass of 0.25 kg spins in a circle at the end of a 1.6 m rope. The ball moves at a tangential speed of 12.2 m/s.

Answer 1

The answer is B) 23 N

Step-by-step explanation:

I got the correct answer on the pre-test.

Answer 2

For this case what we must do is calculate the centripetal force of the object.

By definition, the centripetal force is given by:

`image`

Where,

v: tangential speed

r: radius of the circular path

m: mass of the object

Substituting values we have:

`image`

Answer:

The centripetal force of the ball is given by:

`F = 23.26 N`