Quantity of motion

Quantity of Motion (Momentum)

The quantity of motion (momentum) of an object is the product of mass times velocity. Is the amount of motion a scalar or vector quantity?

Water rocket

A water rocket contains water under high pressure. When the water is released, it is ejected downward and the rocket is propelled upward. Can you explain why this happens?
General Physics

Pre-University Physics


Mechanics, Part 1


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