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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.
Related Questions: - A stone of mass 1kg is tied to a string 4m long and is rotated at constant speed
- Which of the following statements is correct?
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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 stone of mass 1kg is tied to a string 4m long and is rotated at constant speed
- Which of the following statements is correct?
- The ratio of specific charge of an α-particle to that of a proton is
- A wheel of mass 10 kg has a moment of inertia of 10 kgm² about its own axis
- The moment of inertia of a semicircular ring about the centre 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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