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Time, Speed & Distance · Question 1 of 71

Question 1

EasyOriginal question

A delivery van on a city road moves at 72 km/h. What is this speed in metres per second?

Options for question 1

Show the answer and explanation
CorrectNot quiteAnswer A

Correct answer: A

Explanation

  1. To change km/h to m/s, multiply by 518\frac{5}{18}.

  2. 72×518=2072 \times \frac{5}{18} = 20 m/s.

Worth noting

Multiplying by 185\frac{18}{5} instead gives 259.2, which is the conversion the other way round.

Concept
Converting km/h to m/s with the factor 5/18
Typical time
30 s
Your time
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The rule this testsSpeed, conversion and average speed
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