Question

A car travel 150 m in 18 seconds . Express i ts speed in km per hour​

Answer 1

Step-by-step explanation:

first of all calculate it's speed in m/s

so ,

speed = distance / time

= 150 / 8

= 18.75 m/s

now to convert km /hr to m/s we have to multiply it by 5 / 18 and vice versa

so,

18.75 * ( 18 / 5 )

3.75 * 18

6.75 km / hr

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