Recall Questions Define displacement?? Distrance travelled in a particular direction.
Define velocity?? Rate of change of displacement.
Define acceleration?? Rate of change of velocity.
State the units of acceleration?? $$ ms^{-2} $$
Define instantaneous speed?? Displacement $\Delta s$, divided by time for a very short time interval, $\Delta t$.
Define average speed?? Total displacement divided by the total time for journey.
What does the gradient of a displacement-time graph represent?? Instantaneous velocity.
What does the gradient of a velocity-time graph represent?
2021-08-03
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