Contact and Non-contact forces


If an object changes in momentum by 5 kg m/s in 4 seconds what is the force?

2 years ago


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Malvina Kulas

1 Answer

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Change in momentum (called Impulse) = Force x time, so re-arranging the equation for Force gives Force = Impulse / time.

If impulse = 5 kgm/s and time = 4s, then Force = 5/4 = 1.25 N

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