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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 potential energy of particle in a force field is U = A/r² – b/r, where A and B
- A bomb of mass 30 kg at rest exploded into two pieces of masses 18 kg
- If α (current gain) of transistor is 0.98, then what is the value of β
- A 0.01 H inductor and √3 πΩ resistance are connected in series
- Find out the e.m.f. produced when the current changes from 0 to 1 A in 10 sec.
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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