Question

O2) A car travels 100 km in 30 minutes. Find its speed in m/sec​

Answer 1

Step-by-step explanation:

We know Speed = distance / time

Distance = speed × time

Speed = 100 kilometers per hour

Distance = to find out in kilometers

Time = 30 minutes = 30/60 hours = 1/2 hours

Therefore Distance = 100 kilometers per hour × 1/2 hour

Distance = 100 × 1/2 kilometers

Distance = 100/ 2 = 50 kilometers

Answer the car will travel the distance of 50 kilometers in 30 minutes or 1/2 hours

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Answer 2

1 kilometer=1000 km

100 kilometer=100×1000=100000 meter

1 minute =60sec

30 minutes=30×60= 1800

100000m/1800sec