Agirl rides her bike at 15 m/s for 20 s. how far does she travel in that time?
300m
how fast would the girl in the previous problem have been traveling if she had covered the same distance in 11 seconds?

300 m

27.27 m/s

Explanation:

Use the formula:

Distance = speed × time

1.

Speed of the girl riding her bike = 15 m/s

Time taken = 20 s

Distance covered in the given time with the given speed:

Distance = 15 m/s × 20 s = 300 m

2.

Distance covered = 300 m

time taken = 11 s

Speed = Distance ÷ time taken

∴ Speed of the girl would be = (300 m)÷ (11 s) = 27.27 m/s

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