A sock stuck to the side of a clothes-dryer barrel has a centripetal acceleration of 28m/s?. If the dryer barrel has a radius of 27.5cm, what is the tangential speed of the
sock?

Tangential speed, V = 2.78 m/s.

Explanation:

Given the following data;

Centripetal acceleration = 28m/s²

Radius = 27.5cm to meters = 27.5/100 = 0.275 meters

To find the tangential speed;

Centripetal acceleration = V²/r

Substituting into the formula, we have;

28 = V²/0.275

V² = 28 * 0.275

V² = 7.7

Taking the square root of both sides, we have;

Tangential speed, V = 2.78 m/s.

a electromagnetic waves