Changing momentum
Lesson 2 / 18
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I can use the equation force = mass × change in velocity ÷ change in time to calculate the size of force involved in changing momentum in a certain amount of time.
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The momentum of an object is changed by a resultant force acting over a period of time.
Force = rate of change of momentum, F = Δp ÷ t = (mv – mu) ÷ t
The size of an impact force can be changed when the duration of the impact changes.
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