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A car is travelling at a speed of 120 km/hour.
Find the speed of the car in metres/second.

Sagot :

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You will need to convert 120km into m
1 km is 1000 so 120km is 120000
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Answer:

33.33 m/s (2 d.p.)

Step-by-step explanation:

Conversions

  • 1 minute = 60 seconds
  • 1 hour = 60 minutes = 3600 seconds
  • 1 km = 1000 m

To convert kilometres into metres:

  • Multiply the kilometres by 1000.

To convert hours into seconds.

  • Multiply the hours by 3600.

[tex]\implies \sf km/h=\dfrac{km}{h}=\dfrac{1000}{3600}=\dfrac{1}{3.6}[/tex]

So to convert kilometres per hour into metres per second, simply divide the km/h by 3.6:

[tex]\implies \sf120\;km/h=\dfrac{120}{3.6}=\dfrac{100}{3}=33.33\; \sf m/s\;(2\;d.p.)[/tex]

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