1.

Arrange the four graphs in descending order of total work done; where W1, W2, W3 and W4 are the work done corresponding to figure a, b, c and d respectively.(A) W3 > W2 > W1 > W4 (B) W3 > W2 > W4 > W1 (C) W2 > W3 > W4 > W1 (D) W2 > W3 > W1 > W4

Answer»

Work done = area under F – x curve. Area below x –axis is negative & area above x-axis is positive. 

so 

W3 > W2 > W1 > W4



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