Express a speed of 35m per sec in km per hour
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126 km/h
Step-by-step explanation:
method 1 : to convert m/sec into km/hr multiply the number by 18/5.
35 m/s → 35 × 18/5 = 126 km/h
method 2 :
35m = 35/1000 km
1s = 1/3600 hour
therefore
35 m/s = (35/1000)÷(1/3600)
= (35/1000) × 3600
= (35×3600)/1000
= (35×36)/10
= 1260/10
= 126 km/h
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