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You are driving at 90 km/h. How many metres does the car travel in 4 seconds?
Colour codes for the figures (easier to keep track of them) | |
Current speed | 90 km/h |
Time | 4 seconds |
Metres per second (to be calculated) | X m/s |
Convert km/h to m/s:
How many metres do you travel?
3.6 is a fixed figure for converting km/h to m/s. It is difficult to divide by 3.6 in your head. A tip is to first divide by 3 and then by 4. You then take a number that is between the answers you get (the margins between the answer options are so large that closer accuracy is not required).
Strike the zero in km/h:
Convert km/h to m/s:
How many metres do you travel?
Multiplied by 3 is a fixed figure for making approximate conversions from km/h to m/s.
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