How to calculate average speed

The presenter times how long it takes to skate along a 10m path. She does this three times, each time starting slightly higher up a ramp. Her average speed, which is the distance divided by the time taken, increases each time she starts at a higher point on the ramp. The speed increases from 2 meters per second to 5 meters per second.

26 November 2012

2 minutes

This clip is from

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