Question

Plsss answer

Peter runs the 100m in 12 seconds. John covers 2,5 km in 4 minutes with his bicycle.

Determine the rate at which Peter and John move in meters per second.
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Answer 1

59/9

Explanation:

d=100. 12/4=3 min/lap

12mins 4 laps. 100/180= 59/9

R=50

2(pie)(50)=100(pie)

Answer 2

rate at which Peter moves in m/s :

= 100m / 12 s

= 8.33 m/s

rate at which John moves in m/s :

since it should be given in meters per second let's convert km to m and minutes to second

2.5 km = 2500m ( as 1km = 1000m)

4 minutes = 240s ( as 1 min = 60s )

so the rate in m/s :

= 2500m / 240 s

= 10.416 m/s