How to Calculate Work Required to Stop a Hoop Rolling on a Horizontal Floor

When a 110 kg hoop rolls along a horizontal floor with a center of mass speed of 0.220 m/s, a certain amount of work must be done to stop it. To calculate the work required, we can use the formula for work, which is equal to the change in kinetic energy of the hoop.

The formula for work is given by:

Work = ¹/₂mv²

Substitute the given values into the formula:

Work = ¹/₂ x 110 x 0.22²

Work = 2.662 J

Therefore, the work required to stop the hoop rolling on the horizontal floor is 2.662 J.