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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
- In an AC generator, a coil with N turns, all of the same area A and total resistance R,
- A uniform plank of Young’s modulus Y is moved over a smooth horizontal surface
- A stone falls freely under gravity. It covers distances h1, h2 and h3 in the first 5 secs
- A spherical planet has a mass Mp and diameter Dp. A particle of mass
- Two pendulums A and B are oscillating simultaneously with time period
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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