Abaseball with a mass of 0.15 kg is moving at a speed of 40.0 m/s. what is the baseball's kinetic energy from this motion?

The baseball's kinetic energy is 120 joules.

Explanation:

The kinetic energy is defined as:

 (1)

Where is the kinetic energy, m is the mass and v is the velocity.

The kinetic energy represents how much energy have an object as a consequence of its movement.

For the case of a baseball (m = 0.15 kg, v = 40.0 m/s):

But 1 j =

Hence, baseball's kinetic energy is 120 joules.