Arrange the four graphs in descending order of total work done; where W 1 , W 2 , W 3 and W 4 are the work done corresponding to figure a , b , c and d respectively.

Step-by-step solution

As seen from figure, work done in first graph, W a = 0 . Now, work done in figure b , W b = + ve , and that in figure c , W c = + ve , > W b . In last graph, work done is W d = - v e . So, the descending order of total work done is ⇒ W c > W b > W a > W d ⇒ W 3 > W 2 > W 1 > W 4