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An elevator ascends with an upward acceleration of 0.2 m/s2. At the instanr its upward speed in 3 m/sec a loose bolt 5m high from the floor drops from the ceiling of the elevator. Find the tine maril the bolt strikes the floor and the displacement it has fallen |
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Answer» Solution :Initial velocity of BOLT relative to the elevator =0 ACCELERATION of bolt relative to the foor of the elevator =(9.8 +0.2) =10ms`""^2` t=1 second. If s is the time of the displacement then `s=-ut+1/2 GT^(2)""s=-3(1)+1/2 (9.8) (1)^(2)` s=1.9m |
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