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InterviewSolution
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A gradener pushes a lawn roller through a distance 20 m. If he applies a force of 20 kg-wt in a direction inclined at `60^(@)` to the ground, the work done by him isA. 1960 JB. 196 JC. 1.96 JD. 196 kJ |
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Answer» Correct Answer - A Given, `F=20 kg-wt=20xx9.8N` and `s=20 m` `:.` Work done `="F s" cos theta` `=20xx9.8xx20xx cos 60^(@)=1960 J` |
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