Work Power and Energy 1 Question 5

6. 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 gravitational field of a point mass m. Find the correct relation between W1,W2 and W3

(2003,2M)

(a) W1>W2>W3

(b) W1=W2=W3

(c) W1<W2<W3

(d) W2>W1>W3

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Answer:

Correct Answer: 6. (b)

Solution:

  1. Gravitational field is a conservative force field. In a conservative force field work done is path independent

W1=W2=W3



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