Cyclist

A cyclist is moving at 35 km/h and follow pedestrian who is walking at speed 4 km/h. Walker has an advantage 19 km. How long take cyclist to catch up with him?

Correct result:

t =  0.61 h

Solution:

s1=s2 v1t=19+v2t t=19v1v2=19354=0.61 h



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