This Kinetic Energy Calculator is using the formula to calculate mass, velocity or energy value based any two known inputs out of three
What is Kinetic Energy?
The kinetic energy is the measure of the work that an object does by virtue of its motion. Simple act like walking, jumping, throwing, and falling involves kinetic energy.
To accelerate an object, we have to apply force. To apply force, we need to do work. When work is done on an object, energy is transferred, and the object moves with a new constant speed. We call the energy that is transferred kinetic energy, and it depends on the mass and speed achieved.
What is the formula to calculate kinetic energy?
The formula for calculating kinetic energy (KE) is
KE = 0.5 x m x v2
Here, m stands for mass which is the quantity used to describe how much matter is contained in an item and v stands for velocity which describe speed at which an object changes position.
To calculate kinetic energy:
- Determine the object's square velocity.
- Multiply the object's mass by this square.
- The result is the object's kinetic energy.
However, you should be aware that this calculation ignores relativistic effects, which become apparent at faster speeds. Use relativistic kinetic energy calculator if an object is traveling at a speed greater than 3,000 km/s, which is 1% of the speed of light.
Kinetic Energy Units:
Kinetic energy is measured in the exact same units as other forms of energy. The kinetic energy units that are most often acknowledged and utilized are:
- Joule (J), equivalent to kg * m2 / s2 - SI unit
- Calorie (cal)
- Electronvolt (eV)
- Watt-hour (Wh)
- Foot-pound (ft·lb) - imperial unit
Interesting facts about kinetic energy
From the equation, we can derive a few important facts about kinetic energy.
- The kinetic energy formula allows you to calculate the amount of energy required to move an object. The item might be made to slow down using the same energy, but keep in mind that velocity is squared. This implies that even a slight increase in speed causes a significant change in the kinetic energy.
- The square of the object's velocity determines the kinetic energy. In other words, when an object's velocity twice, its kinetic energy quadruples. A vehicle going at 60 mph has four times the kinetic energy of a vehicle traveling at 30 mph, which means that an accident could result in four times as much death and property damage.
- Kinetic energy must always be a positive number or zero. Velocity can be positive or negative, but it is always positive when squared.
- Kinetic energy is not a vector. In other words, a ball thrown down at 5 m/s has the exact same kinetic energy as a ball thrown to the right at 5 m/s.
- The kinetic energy of a body depends on its mass and speed. Heavier the body and greater the speed, higher is the kinetic energy and vice-versa. The kinetic energy of a body is measured in Joules (J).
- The kinetic energy of a body is instantaneous; it depends on the instantaneous velocity of the body, i.e., the velocity the body has at that given moment of calculation of kinetic energy.