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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
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Subject: Physics
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Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A radioactive substance contains 10000 nuclei and its halflife period is 20 days
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- A uniform force of (3i + j) newton acfs on a particle of mass 2kg
- The speed of an electron having a wavelength of 10⁻¹⁰ m is
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Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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