Understanding Kinetic Energy

Kinetic energy is the energy an object possesses due to its motion. It's calculated using the following formula:

* KE = (1/2) * m * v²

Where:

* KE = Kinetic Energy (measured in Joules, J)

* m = Mass (measured in kilograms, kg)

* v = Velocity (measured in meters per second, m/s)

Applying the Formula

1. Mass (m): 50 kg

2. Velocity (v): 80 m/s

Calculation

KE = (1/2) * 50 kg * (80 m/s)²

KE = 25 kg * 6400 m²/s²

KE = 160,000 J

Answer

The kinetic energy of the 50 kg cannonball shot horizontally at 80 m/s is 160,000 Joules.