Calculate the value of average speed and average velocity respectively for a body having following as its velocity time graph

12.5 , 7.5

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7.5 , 12.5

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25 , 15

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15 , 25

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Solution

The correct option is A
12.5 , 7.5

Area above = (6+2) * 20/2 = 80 Area below = 2*20/2 =20

Average speed = (80 + 20)/8 = 12.5 m/s

Average velocity = (80-20)/8 = 7.5 m/s

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