Question

a car travels a distance of 100 kilometre in 2 hours its average speed is 50 kilometre per hour the car might not have travelled at the 50 kilometre per hour all the time sometime it might have travels faster and sometimes lower than this


please give me answer ​

Answer 1

Answer:

Total time for the journey, t=100/45=20/9 hrs

Time for first 50 km, t

1

=50/30=5/3 hr

So, time for remaining journey, t

2

=20/9−5/3=5/9 hrs

Speed for remaining journey v

2

=

5/9

50

=90 km/h