Question

The relationship between force and position is shown in the figure given in one dimensional case .The work done by the force in displacing a body from x=1 cm to x = 5 cm is :

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Answer 1

Answer:

For such graphs, when the force direction is along the displacement axis, total work done is the area under the graph.

Here, we need work done between x=1 to x=5

Area under the graph:W = 10x(2-1+5-4)+20x(3-2)-20x(4-3) = 20erg (CGS units)

Answer 2

Answer:Answer is option A 20 erg

Explanation: