Work Energy and Power - Result Question 57
60. A shell of mass is ejected from a gun of mass by an explosion that generates 1.05 of energy. The initial velocity of the shell is:
(a)
(b)
(c)
(d)
[2008]
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Answer:
Correct Answer: 60. (a)
Solution:
- (a) Let the initial velocity of the shell be
, then by the conservation of momentum where velocity of gun.
Now, total K.E.
But total K.E.