Question

A car travels with a speed of 60 kmph for 15 minutes and then with a speed of 40 kmph for the next 15 minutes. Find the total distance covered by the cars.

Please answer with steps.

Answer 1

Speed of car for first 15 min = 60 km/h = 50/3 m/s

Speed of car for next 15 min = 40 km/h = 100/9 m/s

Time for both cases (t) = 15 min = 900 s

Distance travelled in first half = 50/3*900 = 15000 m = 15 km

Distance travelled in second half = 10000 m = 10 km

total distance travelled by car = 10+15 = 35 km

Note - For converting km/h into m/s multiply it with 5/18

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Answer 2

Answer:

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