Question

A car covers 30 km in 30 minutes . calculate the average speed for the entire journey.

Answer 1

the average speed of the car is 26.67km/h.

Answer 2

Answer:

Average Speed = 51.43 m/s

Explanation:

We Have :-

A car cover 30 kilometer in 30 minute and the next 30 kilometer in 40 minutes

To Find :-

Average Speed

Formula Used :-

Average Speed = Total Distance / Total Time

Solution :-

First half

Distance = 30 km

Time = 30 min = 1/2 hour

Second Half

Distance = 30 km

Time = 40 min = 2/3 hour

Total Distance = 60 km

Total Time = 7/6 hour

Average Speed = 60 * 6 / 7

= 51.43 m/s

Average Speed = 51.43 m/s

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