Question

Elliot ran 4 laps in 209.2 secs. If he ran the same speed for each lap, what was his time for each lap?

Answer 1

Step-by-step explanation:

we how we defined speed(rate of change of distance travelled per unit time)

there fore s=d/t; and t=d/s;

Sofia runs 5 similar laps….every time in first 100m she runs at speed of 4m/s and other 400m at speed of 5m/s;

there fore total time for each lap=(100/4+400/5)seconds=((500+1600)/20)seconds=(25+80)seconds=105seconds

therefore Elliott takes 105seconds to complete each lap

for 5 laps total time is=105*5=525seconds

means total time taken by sofia is 8 minutes 45 seconds

Answer 2

Answer:

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Step-by-step explanation:

Time for taken to complete 1 lap = 209.2 / 4 = 52.3 s