Kinetic Energy Calculator

Kinetic Energy Formula:

\[ KE = \frac{1}{2} \times m \times v^2 \]

Kinetic Energy (KE):

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1. What is Kinetic Energy?

Kinetic energy is the energy possessed by an object due to its motion. It is a scalar quantity that depends on both the mass and velocity of the object.

2. How Does the Calculator Work?

The calculator uses the kinetic energy formula:

\[ KE = \frac{1}{2} \times m \times v^2 \]

Where:

\( KE \) — Kinetic energy (Joules)
\( m \) — Mass of the object (kilograms)
\( v \) — Velocity of the object (meters per second)

Explanation: The kinetic energy increases with the square of velocity, meaning doubling the speed quadruples the kinetic energy.

3. Importance of Kinetic Energy Calculation

Details: Calculating kinetic energy is essential in physics, engineering, and safety analysis. It helps determine the energy involved in moving objects, vehicle collisions, and many mechanical systems.

4. Using the Calculator

Tips: Enter mass in kilograms and velocity in meters per second. Both values must be positive (mass > 0, velocity ≥ 0).

5. Frequently Asked Questions (FAQ)

Q1: What are the units of kinetic energy?
A: The SI unit for kinetic energy is Joules (J), which is equivalent to kg·m²/s².

Q2: Can kinetic energy be negative?
A: No, kinetic energy is always zero or positive since both mass and velocity squared are non-negative quantities.

Q3: How does kinetic energy relate to work?
A: The work-energy theorem states that the net work done on an object equals its change in kinetic energy.

Q4: What is the difference between kinetic and potential energy?
A: Kinetic energy is energy of motion, while potential energy is stored energy due to position or configuration.

Q5: Does the formula work for relativistic speeds?
A: No, this classical formula is accurate for non-relativistic speeds. For objects approaching the speed of light, the relativistic kinetic energy formula must be used.