Rotational MotionHard
Question
A sphere is placed rotating with its centre initially at rest i a corner as shown in figure (A) & (B). Coefficient of friction between all surfaces and the sphere is 
. Find the ratio of the frictional force 
by ground in situations (A) & (B)
. Find the ratio of the frictional force by ground in situations (A) & (B)Options
A.1
B.9/10
C.10/9
D.None
Solution
In figure (a) μN1 + N2 = mg ... (i)
N1 = μN2, N2 =
∴ fa = 
mg
N1 = μN2, N2 =
∴ fa = mgCreate a free account to view solution
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