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Question

A particle moves along the side AB, BC, CD of a square of side 25 m with a velocity of 15 m/s. Its average velocity is

A
15 m/s
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B
10 m/s
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C
7.5 m/s
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D
5 m/s
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Solution

The correct option is D 5 m/s
As shown in the figure, total distance will be of length 3 sides but total displacement will be just side AD.
Total time =25+25+2515=5s
Total displacement =25 m
Average velocity =255=5m/s

419540_282985_ans_cce51e9e469a453a81f1281938e3793b.png

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