When an object is falling, the two main forces acting on it are weight close weightA force that acts on mass, pulling it down, due to gravity. Weight is a force and forces are measured in newtons (N).

The motion of a gas bubble rising due to gravity in a liquid has been studied from many centuries ago and continues to be a problem of great interest today. Interestingly, the fact that this dynamics ...

Save guides, add subjects and pick up where you left off with your BBC account. This is the maximum velocity it can reach when all the forces are balanced. The size and direction of the resultant ...