Define Newton's three laws

1st Law - a body will move with constant velocity or remain at rest unless acted on by a resultant force
2nd Law - F = ma. The rate of change of momentum of an object is equal to the resultant force and it acts in the same direction as the resultant force.
3rd Law - for every action there is an equal and opposite reaction.

GW

Related Physics GCSE answers

All answers ▸

what is the density of a rock mass (0.05kg), submerged in water which diplaced by a 25cm^3 volume?


What are the different ways that energy can be transferred?


Trolley A weighs 5kg and is moving at 15m/s to the right. It collides with a stationary Trolley B, weighing 10kg more than Trolley A. After the collision they move off together. Calulate the velocity that they move off with.


what force does a person have to exert on one side of a seesaw if the other person weighs 70kg and is the same distance away from the pivot (2m) on the other side of the seesaw?