Question

an object is moving 40km in 5sec after that 80km in 5sec what is its average speed​

Answer 1

Answer:

12km/sec

Explanation:

Average speed=total distance/total time

so,

40+80/5+5=120/10

12km/s

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Answer 2

Answer:

2400m/s

Explanation:

40km is equal to 40000 m

80km is equal to 80000m

Average speed = Total Distance/Total Time Taken

=80000+40000/5+5 m/s

=24000/10 m/s

Answer =2400 m/s

To convert 2400m/s into km/s

Multiply 2400x18/5 .