Work Power and Energy 5 Question 9
11. A bullet of mass is fired with a velocity at an angle with the horizontal. At the highest point of its trajectory, it collides head-on with a bob of mass suspended by a massless string of length and gets embedded in the bob. After the collision, the string moves through an angle of . Find
(1988, 6M)
(a) the angle
(b) the vertical and horizontal coordinates of the initial position of the bob with respect to the point of firing of the bullet. (Take
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Answer:
Correct Answer: 11. (c)
Solution:
or ,