Question

You run 100 m at a speed of 5.0 m/s and then you walk 100 m at a speed of 1.0 m/s. What is the average speed?

Answer 1

$\red{HEY\:BUDDY!!}$

HERE'S THE ANSWER..

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♠️ Average speed is ratio of total distance traveled to the total time taken..

✔️ Avg Speed = Total distance / total time taken

⏺️ Total distance = 100 + 100 = 200 m

⏺️ time 1 = 100 / 5 = 20 seconds

✔️ Time = Distance / speed

⏺️ Time 2 = 100 / 1 = 100 seconds

⏺️ Total time = 100 + 20 = 120 second...


=> Avg Speed = 200 / 120

=> Avg Speed = 5 / 3 m / s


HOPE HELPED...

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Answer 2

Here is your solution

️ we know that

Average Speed = Total distance / total time taken

️Total distance = 100 + 100 = 200m 

Time 1st = 100/5 = 20s

Time = Distance/speed 

Time 2nd = 100/1 = 100s

Total time = 100+20 = 120s

Now,

Average Speed = Total distance /total time

Average speed = 200/120 

=>Avg Speed = 5/3m/s 

I hope it helps you