VELOCITY= SPEED IN A GIVEN DIRECTION
eg an rollercoaster that is moving round is changing its motion + direction constantly, so its VELOCITY IS NOT CONSTANT.
- 2 MOVING OBJECTS can have the same speed, but different velocities:
a car travelling north at 30m/s has the SAME SPEED as a car travelling south at 30m/s.
but their VELOCITIES are not the same because…