Last Updated On 01-06-2023 - By Jeesha Sara
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A shell explodes and many pieces fly off in different directions. Which of the following is conserved? |
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a) |
Kinetic energy |
b) |
Momentum |
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c) |
Neither momentum nor KE |
d) |
Momentum and KE |
Question ID - 100271 :-
A shell explodes and many pieces fly off in different directions. Which of the following is conserved?
a)
Kinetic energy
b)
Momentum
c)
Neither momentum nor KE
d)
Momentum and KE
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A shell explodes and many pieces fly off in different directions. Which of the following is conserved? |
|||
|
a) |
Kinetic energy |
b) |
Momentum |
|
c) |
Neither momentum nor KE |
d) |
Momentum and KE |
|
(b) Because during explosion of a shell, |
hence according to law of conservation of momentum
=constantNext Question :
A conical pendulum consists of a mass 
suspended from a strong sling of length
. The mass executes a circle of radius 
in a horizontal plane with speed 
. At time 
The mass is at position 
and has 
velocity. At time 
, the angular momemtum vector of mass 
about the point from which the string passes on the ceiling is
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a) |
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b) |
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c) |
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d) |
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