Find the changes in momentum of a body weighing 100 kg if the speed has changed from 10 M / s to 72 km / h.

univerkov | December 17, 2020 | education

Let’s convert km to m / s: 72 km = 20m / s. Impulse p1 = m * V = 100 * 10 = 1000kg * m / s. p2 = 100 * 20 = 2000kg * m / s. The change in impulse delta p is 2000-1000 = 1000kg * m / s.
Answer: delta p = 1000kg * m / s

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