Dog

Man goes with a dog on a long walk 17 km from the house. Man is walking at speed 4.9 km/h and a dog that constantly running between house and man at 12.6 km/h. How many kilometers will run the dog when they reach their destination?

Correct result:

x =  43.7 km

Solution:

t1=t2=s/v1 x=s2=t2v2=sv2v1=1712.64.9=43.7 km



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