Question

2 Convert each of the following speed into km/hr:

(i) 45 m/sec       =   45 X 18 /5 = 162 km/hr


(vii) 840 m/sec  


(viii) 6.25 m/sec


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Answer 1

Answer:

vii) - 3204 km/ hr

viii) - 10 km/ hr

Answer 2

Step-by-step explanation:

to conver m/s in km/hr multiply it by 18/5

i) 45×18/5

18×9 = 162 km/hr

vii) 840×18/5

168×18 = 3024km/hr

viii) 6.25 × 18/5

1.25×18= 22.5 km/hr

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