Answers

2015-06-04T09:33:11+05:30
In 1 km there are 1000 metres and in 1 hr there are 3600 seconds

So for the conversion of 54km/h to met/sec we will use the above mention information.

54 ×  \frac{1000}{3600} m/s

54 × \frac{5}{18} m/s

3 × 5 m/s

==>> 15 m/s
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2015-06-04T09:47:46+05:30
For converting km/hr we need to multiply 5/18 so as to get it in m/sec

54 × 5÷18
= 270÷18
= 15

thus we get 15 m/sec

or

54×1000÷ 60×60
= 54000÷3600
= 540÷36
= 15

so through this also we get 15 m/s

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