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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
- Electrical force is acting between two charges kept in vacuum. A copper plate
- A circuit area 0.01 m² is kept inside a magnetic field which is normal to its plane.
- A particle of mass M is suited at the centre of a spherical shell of same mass and radius
- A cricketer catches a ball of mass 150 g in 0.1 sec moving with speed 20 m/s
- The total kinetic energy of a body of mass 10 kg and radius 0.5 m moving with a velocity
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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