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Grade 12th passMechanics

please explain

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Profile image of abhay
11 Years agoGrade 12th pass
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3 Answers

Profile image of Manabendra Nath Gaine
11 Years ago
t4 sec.
Profile image of Ishita Das Kar
11 Years ago
t1 sec
Profile image of Manabendra Nath Gaine
11 Years ago
Since area under (a-t) graph gives change in velocity, so speed will be maximum at the instant t4.