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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: - For a simple pendulum performing simple harmonic motion, the time period
- Which of the following, is a vector quantity?
- If F⃗ is the force acting on a particle having position vector r⃗ and ? ⃗ be the torque
- If the length of a stretched string is shortened by 4% and the tension is increased
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Topics: Laws of Motion
(103)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- For a simple pendulum performing simple harmonic motion, the time period
- Which of the following, is a vector quantity?
- If F⃗ is the force acting on a particle having position vector r⃗ and ? ⃗ be the torque
- If the length of a stretched string is shortened by 4% and the tension is increased
- An electron of mass m and a photon have same energy E. The ratio of de-Broglie
Topics: Laws of Motion (103)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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