Answer:

Step-by-step explanation:
Kinetic energy can be found using the following formula:

The mass of the baseball is 0.140 kilograms and the velocity is 38.0 meters per second.

Substitute the values into the formula.
![KE=(1)/(2) [0.140 \ kg][(38.0 \ m/s)^2]](https://img.qammunity.org/2021/formulas/physics/high-school/f56klyu3cnj2w4u3kqpnrd3f32mjyqwrke.png)
First, evaluate the exponent.
- (38.0 m/s)²= 38.0 m/s * 38.0 m/s = 1444 m²/s²

Multiply the two numbers in parentheses together.

Multiply the fraction by the number, or divide the number by 2.

Round to the nearest whole number. The 0 in the tenth place tells us we can leave the number as is.

1 kg*m²/s² is equal to 1 Joule. Therefore, our answer of 101 kg*m²/s² is equal to 101 Joules (J).

The kinetic energy of the baseball is about 101 Joules.