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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
- The vector sum of two forces is perpendicular to their vector difference. In that case,
- A compass needle which is allowed to move in a horizontal plane
- A potentiometer wire has length 4m resistance 8Ω. The resistance that must be connected
- An electric dipole of length 1 cm is placed with the axis making an angle of 30⁰
- A force of 10N is applied on a body for 3 sec and the corresponding displacement 6 m.
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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