Question

the speed of a car is 72 kmh-1.express it in m s-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

please mark me brainliest......

Answer 2

Answer:

20 m/s

Explanation:

Given :

Speed of the car = 72 km/hr

To find :

Speed of the car in m/s from 72 km/hr which involves conversions

Speed of the car = 72 km/hr

For converting a speed from km/hr to m/s, we need to multiply it by 5/18 and from m/s to km/hr, we need to multiply it by 18/5

Speed if car in m/s = 72×5/18

Speed of car in m/s = 4×5

Speed of car = 20 m/s

The speed of the car is equal to 20 m/s