A) \[1960\text{ }J\]
B) \[196\text{ }J\]
C) \[1.96\text{ }J\]
D) \[196\text{ }kJ\]
Correct Answer: A
Solution :
Given, \[F=20kg-wt=20\times 9.8N\] \[\theta ={{60}^{o}}\] and \[s=20m\] Work done \[=F.s\,\,\cos \,\,\theta \] \[=20\times 9.8\times 20\times \cos \,{{60}^{o}}\] \[=1960\,J\]You need to login to perform this action.
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