Answer:
The area of the curve drawn between force and displacement gives the work done. From the graph, base\[=14-2=12\,m\] height = 60 m \[h=\frac{784}{20\times 9.8}=4m\] Work done = area of the triangle \[=\frac{1}{2}\times base\times height\] \[=\frac{1}{2}\times 12\times 60=360J\]
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