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A dust packet is dropped from 5th storey of a multi-storeyed building.In the first second of its free fall another dust packet is dropped from 7th storey 15m below the 9th storey.If both packets reach the ground at same time,then height of the building is
Options
(a) 25m
(b) 15m
(c) 20m
(d) 16m
Correct Answer:
20m
Explanation:
No explanation available. Be the first to write the explanation for this question by commenting below.
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Topics: Motion in Straight Line
(93)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- An electron moving in a circular orbit of radius r makes n rotations per second.
- A parallel plate condenser with a dielectric of dielectric constant K between the plates
- The identical cells connected in series are needed to heat a wire of length one meter
- An electron in a circular orbit of radius 0.05 nm performs 10¹⁶ rev/s. The magnetic
- A meter stick of mass 400 g is pivoted at one end and displaced through an angle 60°.
Topics: Motion in Straight Line (93)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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