(b) The speed of the vehicle is written as 90 km/h. State the speed in SI unit. Show your working in the space below.
2 answers:
Answer:
Explanation:I don't say you to mark my ans as brainliest but if it has really helped you plz don't forget to thank me...
Answer:
90 km/h = 25 m/ s
Explanation:
to understand
1 km = 1000 m
1 h = 60 minutes and since 1 minute = 60 s you can see that 1 h = 60 * 60 s
90 km / h = 90 1000m / 3600 s
90 *1 / 3.6
90/ 3.6
25 m/ s
so 90 km/h = 25 m/ s
(by the way 90 m/s = 3.6 * 90 = 324 km/ h )
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