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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
- A solid sphere of mass M, radius R and having moment of inertia about an axis passing
- The displacement of a particle varies according to the relation x=4 (cos π t + sin π t)
- The work function of sodium is 2.3 eV. The threshold wavelength of sodium will be
- An electric dipole placed in a non-uniform electric field experiences
- The order of distance of an electron revolving in an atom from nucleus is
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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