If Joe rides his bicycle in a straight line for 15 min with an average velocity of 12.5 km/h south, how far as he ridden?

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Answer 1 · 2016-01-15T19:10:23

3.125 km

The formula for velocity is

#V=(D) /(T)#

where T is time, V is velocity, and D is distance.
This can be rearranged so that we can find distance.

#D=V*T#

Substituting in the given values, we get

#D=15*12.5#

Then we convert 15 minutes to hours to multiply with 12.5 km/h.

So, 15 mins = 15/60 = 0.25 hrs.

#D=0.25*12.5#

x = displacement = 3.125 km

He must have ridden 3.125 km.