Grade 11IIT JEE Entrance Exam
the displacement y of a body varies with time t as y=-3/2t2+36t=2.how long does body takes to come to rest?
the displacement y of a body varies with time t as y=-3/2t2+36t=2.how long does body takes to come to rest?
1 Answer
Pavan sai vardhineedi
It makes a quadratic equation when solved.
36t-3t2/2=2
=3t2+4/2=36t
3t2-72t+4=0
But the thing is it has no real roots!!!
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