A lift starts going up from rest. It acceleration is shown in fig., plotted against time. Time when lift comes to instantaneous rest is ..........

Engineering

Physics

Rectilinear

Question

12 sec

8 sec

10 sec

4 sec

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Area a-t curve give $∆$ V
1 × 4 = (t – 8) × 2
4 = 2t – 16
t = 10 sec.

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