Question

# 4 persons A, B, C, D are standing at corners of an square of side $$'a'$$. If they move with speed $$v$$ in such way than A always moves towards B , B always  moves towards C, C always moves  towards D an D always moves towards A. Find out the following.(a) At which position they will meet each other?(b) At what time will they meet?

Solution

## The figure shown is representing he situations mentioned in the question(a)They will meet at centroid.(b) The relative velocity between any two person is V.$$\rightarrow$$ Distance to travel relative to other $$=a$$time $$=\cfrac{a}{v}$$Physics

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