American stuntmen are smart – they think about safety. When they do a jump in a car, they calculate everything: the speed, the distance… But in Hong Kong, we don’t know how to count. Everything we do is a guess. If you’ve got the guts, you do it. All of my stuntmen have gotten hurt.
Jackie Chan
By now you should be able to:
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define the term ‘speed”
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name and give the SI units for distance, time and speed.
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use the relationship v = Δd/Δt to solve a range of problems involving speed distance or time.
Next week we start on distance time graphs and will use the slope or gradient to calculate the speed of an object.
Review this week’s work by watching the video and pausing it when asked to check you understanding.