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A ball is projected upwards from the foot of a tower. The ball crosses the top of the tower twice after an interval of 6 s and the ball reaches the ground after 12 s.The height of the tower is (take , g= 10 ms⁻² )
Options
(a) 120 m
(b) 135 m
(c) 175 m
(d) 80 m
Correct Answer:
135 m
Explanation:
No explanation available. Be the first to write the explanation for this question by commenting below.
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- The friction of the air causes a vertical retardation equal to 10%
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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 wavelength of first line of Balmer series is 6563Å. The wavelength of first line
- The friction of the air causes a vertical retardation equal to 10%
- A particle has initial velocity(3i⃗ +4j⃗)and has acceleration (0.4i⃗ +0.3j⃗)
- A wheel of mass 10 kg has a moment of inertia of 10 kgm² about its own axis
- The resistance of an ammeter is 13Ω and its scale is graduated for a current
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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