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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
- Two planets at mean distances d₁ and d₂ from the sun have their frequencies n₁ and n₂
- The self-inductance of a choke coil is 10 mH. When it is connected with a 10 V DC source,
- A cricket ball of mass 250 g collides with a bat with velocity 10 m/s
- Two coaxial solenoids are made by winding thin insulated wire over a pipe
- A radioactive nucleus of mass M emits a photon of frequency v and the nucleus recoils.
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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