Impulse Calculator
Calculate impulse from force/time or mass/velocity change.
This tool is for informational and educational purposes only. It is not a substitute for professional financial, medical, legal, or engineering advice. See Terms of Service.
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Choose your calculation mode: from force and time, or from mass and velocity change. Enter the values, and the calculator computes the impulse instantly.
About Impulse
Impulse represents the total effect of a force acting over time. It is a vector quantity equal to the change in momentum. The impulse-momentum theorem connects force, time, mass, and velocity change. This concept is essential in collision analysis, sports biomechanics, rocket propulsion, and safety engineering. Crumple zones and padding work by extending the impact time, which reduces the peak force for a given impulse.
Frequently Asked Questions
What is impulse?
Impulse is the product of force and the time over which it acts. It equals the change in momentum of the object. The SI unit is newton-seconds (N s) or equivalently kg m/s.
How does impulse relate to momentum?
The impulse-momentum theorem states that impulse equals the change in momentum: J = F x t = m x delta_v. This is the integrated form of Newton's second law.
Why is impulse important in sports?
In sports like baseball and golf, maximizing impulse (force times contact time) maximizes the change in momentum of the ball, resulting in greater velocity after the hit.