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Kinetic Energy Formula:
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The kinetic energy formula calculates the energy possessed by an object due to its motion. It is a fundamental concept in physics that quantifies the work needed to accelerate an object from rest to its current velocity.
The calculator uses the kinetic energy equation:
Where:
Explanation: The equation shows that kinetic energy is proportional to the mass of the object and to the square of its velocity.
Details: Calculating kinetic energy is essential in physics, engineering, and various practical applications including vehicle safety design, sports science, and energy conservation calculations.
Tips: Enter mass in kilograms and velocity in meters per second. All values must be valid (mass > 0, velocity ≥ 0).
Q1: Why is velocity squared in the formula?
A: Velocity is squared because kinetic energy increases with the square of velocity - doubling speed quadruples kinetic energy.
Q2: What are typical kinetic energy values?
A: Kinetic energy values vary widely based on mass and velocity. A 1kg object moving at 1m/s has 0.5J of kinetic energy.
Q3: How does mass affect kinetic energy?
A: Kinetic energy is directly proportional to mass - doubling the mass doubles the kinetic energy at the same velocity.
Q4: Are there limitations to this formula?
A: This formula applies to non-relativistic speeds (much less than the speed of light). For objects approaching light speed, relativistic equations are needed.
Q5: Can kinetic energy be negative?
A: No, kinetic energy is always positive or zero (when velocity is zero), as both mass and velocity squared are non-negative.