If W1, W2 and W3 represent the work done in moving a particle from A to B along three different paths 1 ,2 and 3, respectively, (as shown in the figure) in the gravitational field of a point mass m, find the correct relation between W1, W2 and W3.
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a
W1>W2>W3
b
W1=W2=W3
c
W1
d
W2>W1>W3
answer is B.
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Detailed Solution
As gravitational force is a conservative force, work done is independent of path.∴ W1=W2=W3