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position of a body is x=5+3tsquare what the average velocity between t=2s,t=4s |
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Answer» displacement between t = 2 and t = 4 ,= 5+3(4)² - (5+3(2)²)= 48-12= 36 so, avg velocity = Displacement/time = 36/2 = 18m/s |
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