Question

To convert a speed of km/hr into m/sec, we multiply by
18
5
. Why?
Justify your answer

Answer 1

Answer:

1 Km= 1000m

1hour= 3600 sec

1km/hr = 1000/3600

=5/18

Answer 2

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Kilometres into meters

${\sf{ \frac{km}{hr} = \frac{1 \: km}{ 1 \: hr} = \frac{1 \times 1000 \: m}{60 \times 60 \: sec} = \frac{\cancel{1000}}{\cancel{3600}} = \frac{5}{18} m {sec}^{ - 1} }}$

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