A car covers the first 50 km in 2 h ,the next 60 km in 3h and the last 30 km in 2 h.Calculate the average speed of the car.
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A car covers the first 50 km in 2 h ,the next 60 km in 3h and the last 30 km in 2 h.Calculate the average speed of the car.
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Verified answer
Answer:
20km/s
Step-by-step explanation:
FIrst 50km is covered in 2hrs, next 60km in 3hrs and last 30km in 2hrs.
average speed=?
∴Average speed= Total distance covered / Total time taken
Average speed= 50+60+30/2+3+2
Average speed=140/7
∴Average speed=20 km/s