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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.
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Topics: Laws of Motion
(103)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A 10 micro farad capacitor is charged to 500 V and then its plates are joined
- A speeding motorcyclist sees traffic jam ahead him. He slows down to 36 km per hour
- The potential differences across the resistance, capacitance and inductance
- Which of the following statement about scalar quantity is true?
- The de-Broglie wavelength of a proton(charge = 1.6 x 10⁻¹⁹ C, Mass = 1.6 x 10⁻²⁷ kg)
Topics: Laws of Motion (103)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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