Question

a cyclist rides his cycle with a speed of 30 m/s for the first half and the next half-length he covers with the speed of 45 m/s. find the average speed of the cyclist

Answer 1

average speed is 30m/s + 45 m/s ÷ 2
= 75/2 = 37.5 m/s


hope this helps you

Answer 2

Heya user!!!!
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Good morning!!!!
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Here's the solution to this problem :-

Let the total length of the journey be 2x m......

Then halfway distance =x m.....

Now,

Speed for the first half =30m/s

Distance =x m

Therefore, time taken = Distance /time

=x/30 s

Now,

Speed for the second half =45m/s

Distance = x m....

Therefore, time = x /45 s

Now,

Average speed of the journey = Total distance / Total time

=2x/(x/30+x/45)

=2x/(5x/90)

=2*18

=36m/s....

Hope this helps!!!

:-)