Use the formula: Impulse = Force × Time
Write it as: J = FΔt
If force changes over time, use: J = ∫F dt
Find the force acting on the object
Find the time interval during which the force acts
Multiply force by time if the force is constant
For varying force, calculate the area under the force-time graph
Use units of newton-seconds (N·s)
Use units of kilogram meter per second (kg·m/s) when relating impulse to momentum change
Use the formula: Impulse = Change in Momentum
Write it as: J = Δp = mv – mu