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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 air bubble in a glass slab with refractive index 1.5 (near normal incidence)
- If A=4i+4j+4k and b=3i+j+4k, then angle between vectors A and B is
- Work done by an external agent in separating the parallel plate capacitor is
- In intrinsic semiconductor at room temperature number of electrons and holes are
- The optical path of a monochromatic light is same if it goes through 4.0 cm
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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