Question

The Speed of a car is 72 kmh—¹ express it in ms—¹

Answer 1

Answer:

1km=1000m

1H=60×60 s

1H=3600 s

72km=72000m

∴speed=72000/3600

ON CANCELLING  WE GET :-

SPEED=20m/s

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Step-by-step explanation:

Answer 2

Answer:

20 ms-1

Step-by-step explanation:

To convert kmh-1

We would divide by 3.6 or multiply by 5/18

72/3.6

=20