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A ball is thrown vertically downwards from a height of 20 m with an initially velocity v₀. It collides with the ground, loses 50 percent of its energy in collision and rebunds to the same height. The initial velocity v₀ is (Take g=10 ms⁻²)
Options
(a) 28 ms⁻¹
(b) 10 ms⁻¹
(c) 14 ms⁻¹
(d) 20 ms⁻¹
Correct Answer:
20 ms⁻¹
Explanation:
No explanation available. Be the first to write the explanation for this question by commenting below.
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Topics: Work Energy and Power
(94)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A bimetallic strip consists of metals X and Y. It is mounted rigidly at the base as shown
- A body is moving in a vertical circle. The string must remain taut at the highest point
- A wheel has angular acceleration of 3.0 rad/sec² and an initial angular speed of 2.00
- A light whose frequency is equal to 6.0 x 10¹⁴ Hz is incident on a metal
- 64 drops of mercury, each charged to a potential of 10 V, are combined
Topics: Work Energy and Power (94)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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