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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
- If a magnetic substance is brought near the north or the south pole of a bar magnet
- The power obtained in a reactor using U²³⁵ disintegration is 1000 kW
- Penetrating power of X-rays does not depend on
- Complete the reaction: ₀n¹+ ₉₂U²³⁵→₅₆Ba¹⁴⁴+……..+3n
- When there is no heat change from surroundings in a system, then the process
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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