Question

the speed of a car is 72kmh-1.Express it in ms-1

Answer 1

Hope it helps.....!!!!

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✔️1km/h=>5/18m/s

✔️72km/h=>72×5/18m/s

=>4×5m/s

=>20m/s.

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#Be Brainly✌️

Answer 2

Hey friend..!! here's your answer
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The speed of car is 72 kmh-1

1km = 1000 m
1hr = 60 min = 3600 s

First , convert kmh into ms

1 km / hr = 1000 / 3600 m/s
1km / hr= 5 / 18 m/s

So , 72 kmh = 72 × (5/18) ms-1
= (4 × 5 )ms-1
= 20 ms-1

Answer : 20ms-1

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#Hope its help