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, calculated using the formula KE = (1/2) × m × v².

2. How Does the Calculator Work?

The calculator uses the kinetic energy formula:

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 the velocity, meaning that doubling the speed quadruples the kinetic energy.

3. Importance of Kinetic Energy Calculation

Details: Calculating kinetic energy is essential in physics, engineering, and various practical applications including vehicle safety design, sports science, and energy conservation calculations.

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), where 1 J = 1 kg·m²/s².

Q2: Does kinetic energy depend on direction?
A: No, kinetic energy is a scalar quantity and does not depend on the direction of motion, only on the magnitude of velocity.

Q3: What happens to kinetic energy when velocity doubles?
A: When velocity doubles, kinetic energy increases by a factor of four (since energy is proportional to the square of velocity).

Q4: Can kinetic energy be negative?
A: No, kinetic energy cannot be negative as both mass and the square of velocity are always positive or zero.

Q5: How is kinetic energy related to work?
A: The work-energy theorem states that the net work done on an object equals its change in kinetic energy.