SOLUTION: There is a railroad track that is 5 km long and the rails are one metre apart. A child ties a can to a dog's tail and it starts running down the track, the dog's initial speed is o

Question 1132126: There is a railroad track that is 5 km long and the rails are one metre apart. A child ties a can to a dog's tail and it starts running down the track, the dog's initial speed is one metre per second. the dog speeds up by one metre per second every time it heats the can hit a rail. assuming the can hits all the rails, what is the dog's speed at the end of the 5 km?

Found 2 solutions by MathLover1, Alan3354:
Answer by MathLover1(20850) (Show Source): You can put this solution on YOUR website!

the dog's initial speed is
the dog speeds up by every time it heats the can hit a rail
The US standard railroad gauge (distance between the rails) is feet=
assuming the can hits all the rails, the number of the rails is:

assuming the can hits all the rails, it will be times
so, dog will increase speed times by

the dog's speed at the end of the is initial speed plus increase:

Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
Makes no sense.
No way to know how often the can hits a rail when the dog is running.
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