Consider a situation as shown in the figure. The system is released from rest. When the block of mass 
has falled a distance 
, its speed becomes 
. Find the friction coefficient 
.
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
A
When the block of mass 
has descended a distance 
, distance travelled by the block of mass 
is 
. If the speed of mass 
is 
, then speed of mass 
will be 
.
Work done against friction 
Loss in P.E. = gain in K.E. + work done against friction
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