A yo-yo with a mass of 1 kg is being swung around in circles on a 2-meter long string at a constant speed of 4 m/s. What is the centripetal acceleration of the yo-yo?

8 m/s²

Explanation:

Centripetal acceleration formula:

As you can see, the mass of the yo-yo is not relevant to this problem.

We are given that the velocity of the yo-yo is 4 m/s.

The radius of the circle formed by the yo-yo on a 2-meter long string is 2 meters.

Substitute these known values into the equation.

The centripetal acceleration of the yo-yo is 8 m/s².

electric field is a function of 1/r^2

yes, the force per unit charge for a point charge is inverse square law.