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