Last Updated On [03-11-2023]
A smooth sphere
is moving on a frictionless horizontal plane with angular speed
and 
respectively. Then
a)
b)
c)
d)
A smooth sphere is moving on a frictionless horizontal plane with angular speed and respectively. Then
a)
b)
c)
d)
Question ID - 100653 :-
A smooth sphere is moving on a frictionless horizontal plane with angular speed and respectively. Then
a)
b)
c)
d)
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A smooth sphere |
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|
a) |
|
b) |
|
c) |
|
d) |
|
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(c) As the spheres are smooth, there will be no transfer of angular momentum. Thus, |
after collision, will remain with its initial angular momentumNext Question :
|
Which of the following is/are correct? |
|
|
a) |
If centre of mass of three particles is at rest and it is known that two of them are moving along different lines, then the third particle must also be moving |
|
b) |
If centre of mass remains at rest, then net work done by the forces acting on the system must be zero |
|
c) |
If centre of mass remains at rest, then the net external force must be zero |
|
d) |
If speed of centre of mass is changing, then there must be some net work being done on the system from outside |
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