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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 liquid wets a solid completely. The meniscus of the liquid in a sufficiently long
- A circular disc rolls down an inclined plane.The ratio of rotational kinetic energy
- Two concentric coils each of radius equal to 2π cm are placed at right angles
- Water rises in a vertical capillary tube up to a height of 2.0 cm.
- Which one of the following statements is not correct in case of a semiconductor?
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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