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A digital guide to the process of problem solving which highlights strengths and weaknesses, explains mistakes, reminds you about definitions and helps to clarify concepts. Check out our Introductory network to see it in action.
Before we can model motion we need to define the quantities that we are going to use, once that has been done we can investigate how they are related.
Displacement as a vector, adding perpendicular displacements using pythagorus
What is the difference between velocity and speed?
When do we use instantaneous velocity and average velocity?
In an attempt to simplify we can consider all bodies to be a like a small ball with forces acting at the centre. Alternatively we could just consider the case of a small ball and ignore all other possibilities.
There are 6 fundamental units we will use (not the candle) and a whole load of derived ones.