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Physics question help

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The answer is C

The way I did the question was by drawing a graph where displacement is the x axis and force is on the y axis. The area under the curve is work done as W=F*s . Since force is increasing uniformly, there will be a linear relationship between those variables. Since the object doesnt move until the force exceeds 0.5F, the y intercept of the graph will be 0.5F.

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Edited by Jai Chandak

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