What is the difference between speed and velocity?
Speed is how fast an object is moving, whereas velocity is an objects speed in a given direction.
MT
Related Physics GCSE answers
All answers ▸What is the density of a rock (mass 75g) submerged in water which displaced by a volume of 37.5cm^3? SI units
Explain why the nuclear model of the atom replaced the plum pudding model of the atom?
I don't understand acceleration and how something can accelerate without speeding up.
A 15kg cannonball and a 1kg football are dropped to the ground from a height of 10 metres. Calculate the speed of the cannonball and of the football just before they hit the ground (you may ignore air resistance).