Kinetic energy is the energy an object possesses due to its motion. It is calculated using the formula KE = (1/2)mv^2, where m is the mass of the object in pounds and v is the velocity in feet per second.
The mass of an object can be determined by using a scale calibrated in pounds. Alternatively, you can convert the mass from other units such as kilograms to pounds using the conversion factor 1 kg = 2.20462 lbs.
The standard unit for velocity in English units is feet per second (ft/s).
No, kinetic energy cannot be negative in any unit system. It represents the amount of energy an object possesses due to its motion, so it is always a positive value.
Kinetic energy is used in various real-world applications such as sports, transportation, and engineering. It helps in calculating the force required for a moving object to stop, determining the speed of a vehicle, and designing efficient machines like turbines and engines.