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A box is initially at rest on a horizontal, frictionless table. If a force of 10 Newtons acts on the box for 3 seconds, what is the momentum of the box at the end of the 3 second interval?
Ans:
The momentum of box at the ending of the 3 second interval is 30 newton-seconds or 30 kilogram-meters per second.
conclution about friction is a necessary evil
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