A baseball that weighs 0.125 kg is thrown at 40.1 m/s. What is the Kinetic Energy of the ball?

Kinetic Energy is the energy an object possesses because of its velocity. Any object that is in motion is using kinetic energy: a child running, a thrown ball, someone skiing down a hill, or a book falling off of a shelf. This is why the equation takes into account the object’s mass and the rate at which they are traveling (their velocity).
\(KE= \frac{\mathrm{1} }{\mathrm{2}} \times mv^2\)
KE = Kinetic energy (expressed in Joules – J)
m = mass (expressed in kilograms)
\(v^2\) =velocity (expressed in meters per second squared)
m = 0.125 kg
v = 40.1 m/s
\(KE= \frac{\mathrm{1} }{\mathrm{2}} \times (0.125kg) \times (40.1m/s)^2=100.5J\) which rounds to 101 J.