A) \[0{}^\circ \]
B) \[30{}^\circ \]
C) \[60{}^\circ \]
D) \[90{}^\circ \]
Correct Answer: C
Solution :
Given,\[s=10\,\,m,\,\,F=5N,\,\,W=25\,\,J,\,\,\theta =?\] Work done,\[W=Fs\cos \theta \] \[\therefore \] \[\cos \theta =\frac{W}{Fs}=\frac{25}{5\times 10}=\frac{1}{2}\] \[=\cos {{60}^{o}}\,\,\,\,\therefore \theta ={{60}^{o}}\]You need to login to perform this action.
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