1. Convert Units:
* Mass: 22500 lb (Convert to kilograms: 1 lb = 0.453592 kg)
* 22500 lb * 0.453592 kg/lb = 10205.94 kg
* Speed: 55 mph (Convert to meters per second: 1 mph = 0.44704 m/s)
* 55 mph * 0.44704 m/s/mph = 24.5872 m/s
2. Kinetic Energy Formula:
* Kinetic Energy (KE) = 1/2 * mass * velocity²
3. Calculation:
* KE = 1/2 * 10205.94 kg * (24.5872 m/s)²
* KE ≈ 3,087,524.6 Joules
Therefore, the kinetic energy of the truck is approximately 3,087,524.6 Joules.
