Physics
Two friends, Jack and Amanda start a race, and together they run for 50 m. Jack turns right and runs 60 m while Amanda turns left and runs 40 m. Then Jack turns left and runs 50 m while Amanda turns right and runs 50 m. How far are the two friends from each other?
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1 solution
Draw out the problem on a piece of paper.
Identify that the distance between the two friends is the hypotenuse of a right-angled triangle. (you will realised the adjacent is 20 m and the opposite is (50 + 50) m
Using Pythagorus Theorem,
the distance is the square root of the squares of the other two sides (i.e. 100 squared + 20 squared = 10400), which is around 102, which is around 100