Work Power and Energy 4 Question 2
3. A bob of mass is suspended by a massless string of length . The horizontal velocity at position is just sufficient to make it reach the point . The angle at which the speed of the bob is half of that at , statisfies
(a)
(b)
(c)
(d)
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Answer:
Correct Answer: 3. (d)
Solution:
- As,
Solving Eqs. (i), (ii) and (iii), we get