Last Updated On 01-06-2023 - By Jeesha Sara
A sphere is placed rotating with its centre initially at rest in a corner as shown in figures (a) and (b). Coefficient of friction between all surfaces and the sphere is 1/3. Find the ratio of the friction forces 
by ground in situation (a) and (b)
.png)
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a) |
1 |
b) |
|
c) |
|
d) |
None of these |
Question ID - 100233 :- A sphere is placed rotating with its centre initially at rest in a corner as shown in figures (a) and (b). Coefficient of friction between all surfaces and the sphere is 1/3. Find the ratio of the friction forces by ground in situation (a) and (b)
a)
1
b)
c)
d)
None of these
A sphere is placed rotating with its centre initially at rest in a corner as shown in figures (a) and (b). Coefficient of friction between all surfaces and the sphere is 1/3. Find the ratio of the friction forces by ground in situation (a) and (b)
|
a) |
1 |
b) |
|
c) |
|
d) |
None of these |
(b)
In figure, for translational equilibrium in vertical direction
.png)
In horizontal direction
…(ii)
Solving.Eqs. (i) and (ii),
The required friction is
In figure, the sphere has the tendency to move toward the right;
Which gives 
Next Question :
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A particle of mass |
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a) |
|
b) |
|
c) |
|
d) |
None of these |
travelling with velocity 
and kinetic energy 
collides elastically to another particle of mass 
, at rest. What is the fraction of total energy retained by the particle of mass 
?
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