What is the kinetic energy of a 3-kilogram ball that is rolling at 2 meters per second? A. 23 B. 8J C. 4J D. 63

## Step 1: Understand the problemThe problem is asking us to find the kinetic energy of a 3-kilogram ball that is rolling at 2 meters per second. The kinetic energy can be calculated using the formula: , where is the mass of the object and is the velocity of the object.## Step 2: Substitute the values into the formulaWe substitute the given values into the formula. The mass is 3 kilograms and the velocity is 2 meters per second. ### \( KE = \frac{1}{2} * 3 kg * (2 m/s)^2 \)## Step 3: Calculate the kinetic energyWe perform the calculation. First, we square the velocity, then multiply by the mass and finally divide by 2.###