A) 6
B) \[3\sqrt{3}\]
C) \[3(2-\sqrt{3)}\]
D) \[3\]
Correct Answer: C
Solution :
Work done \[W=M{{B}_{H}}\left( 1-\cos \theta \right)\] \[=20\times 0.3\left( 1-\cos 30{}^\circ \right)=6\left( 1-\frac{\sqrt{3}}{2} \right)=3\left( 2-\sqrt{3} \right)\]You need to login to perform this action.
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