Kinetic energy is a form of energy that an entity or particle possesses due to its motion.

The relation between the object's mass and its speed.

KE = \frac{1}{2} mv^2

Step 1: Calculating the kinetic energy of the object

Given that

Mass of the base ball m = 145 g = 0.145 kg

Speed of the base ball thrown by a pitcher v = 38 m/s     

Kinetic energy KE = \frac{1}{2}mv^2

KE=\frac{1}{2}(0.145\ kg)\ 1444\ m^2/s^2  

KE = 104.69 joules

Hence, Kinetic energy of the base ball KE = 104.69 joules