A bicycle path is 5 miles long. A man walks from one end at the rate of 3 mph. At the same time, a friend bicycles from the other end, traveling at 12 mph. In how many minutes will they meet?
(what method do I have to use to figure this out?)
hello there welcome to study pool!
this is relative velocity problem
the easiest method to solve is
stop one member and allowed to another member to travel
how to do it?
add 3mph to opposite direction of man walk.
then velocity of man=0
when add 3mph for bicycle 12+3=15mph
now we can apply
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