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# Momentum

From classical mechanics to quantum field theory, momentum is the Universe's preferred language to describe motion. Learn here about momentum, its conservation, and how it captures our intuitions.

A water-rocket of mass \(2\text{ kg}\) blasts off from the ground. The lifting force applied on the rocket by the water is \(24\text{ N},\) and the air resistance is negligible. Assuming that the mass of the water-rocket does not change, how fast will the rocket be after \(5\) seconds?

The gravitational acceleration is \(g=10\text{ m/s}^2.\)

**in grams**?

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