A) \[\theta ={{60}^{o}}\]
B) \[\theta ={{50}^{o}}\]
C) \[\theta ={{35}^{o}}\]
D) \[\theta ={{45}^{o}}\]
Correct Answer: A
Solution :
\[W=F\,\,s\,\,\cos \theta \] \[\cos \theta =\frac{W}{F\times S}=\frac{1}{10\times 0.2}=\frac{1}{2}\] \[\cos \theta =\frac{1}{2}\Rightarrow \theta ={{60}^{o}}\] The angle between the force and displacement is\[{{60}^{o}}\].
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