Question

A yellow ball with a mass of 2 kg is rolling across the floor at 3 m/s. A red ball with a mass of 3 kg is rolling across the same floor at 3 m/s. Which ball has greater kinetic energy, and why?

plz hurry in the test nowwwwww!!!!!!

Answer 1

In order to determine which ball has a higher kinetic energy, we first look at the formula of kinetic energy which is:

kinetic energy = 1/2 * mass * velocity²

The factors influencing the kinetic energy of an object are its mass and its velocity. Both of the balls have the same velocity; however, the red ball has a greater mass. Therefore,

The red ball has greater kinetic energy, because it has a greater mass.

We may also determine these quantitatively using the formula given and the kinetic energy of the yellow ball works out to be 9 J and that of the red ball is 13.5 J.

Step-by-step explanation: