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In the diagram block A & B are of same mass M & the mass of the block C is M1. frction is present only under the block A.the whole system is suddenly release from rest.the minimum coefficient of friction to keep to mkeep the block A at the state of rest. a) M1/M b) 2M1/M c) M1/2M d) none of these ans (b)
In the diagram block A & B are of same mass M & the mass of the block C is M1. frction is present only under the block A.the whole system is suddenly release from rest.the minimum coefficient of friction to keep to mkeep the block A at the state of rest.
a) M1/M
b) 2M1/M
c) M1/2M
d) none of these
ans (b)
hi, let block C travelled a distance x downwards and so block B trvelled the same distance horizontally work done by gravity= -M1gx P.E of spring= 1/2Kx^2 before the block A starts sliding Kx= #Mg (# is coeff. of friction) work done by gravity= P.E of spring solving both eqns. #= 2M1/M
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