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A stone is tied to a string of length l and whirled in a vertical circle with the other end of the string as the centre.At a certain instant of time,the stone is at its lowest position and has speed u.The magnitude of the change in velocity as it reaches a position where the string is horizontal (g being acceleration due to gravity) is
Options
(a) √2(u² – gl)
(b) √(u² – gl)
(c) u – √(u² – 2gl)
(d) √2gl
Correct Answer:
√2(u² – gl)
Explanation:
No explanation available. Be the first to write the explanation for this question by commenting below.
Related Questions: - The refracting angle of a prism is A and refractive index of the material of the prism
- An electron in the hydrogen atom jumps from excited state n to the ground state
- Which one of the following is not due to total internal reflection?
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Topics: Laws of Motion
(103)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The refracting angle of a prism is A and refractive index of the material of the prism
- An electron in the hydrogen atom jumps from excited state n to the ground state
- Which one of the following is not due to total internal reflection?
- A glass slab consists of thin uniform layers of progressively decreasing refractive
- Radius of a soap bubble is increased from R to 2R. Work done in this process
Topics: Laws of Motion (103)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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