Work Energy And Power Ques 66
66. A shell is fired from a cannon, it explodes in mid air, its total
[1994]
(a) momentum increases
(b) momentum decreases
(c) K.E. increases
(d) K.E. decreases
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Answer:
Correct Answer: 66.(c)
Solution:
- (c) When shell explodes in mid air its chemical energy is partly converted into mechanical energy, hence K.E. increases.
BETA
