Question

$Aforceof10Ndisplacesabodybyadis\tan ceof2matanangleof{60}^{\circ }toitsowndirection.Findtheamountofworkdone.$

Answer 1

Dear student,

$$\begin{gathered} Workdoneisthescalarproductofforceanddisplacement. \\ So,thegeneralizedmathematicalformofworkdoneis, \\ W=Fs\cos \theta ---\left(1\right) \\ Given\theta =60°and\cos 60°=\frac{1}{2} \\ Force=10N \\ displacements=2m \\ W=10\times 2\times \frac{1}{2}--(from1) \\ W=10J \end{gathered}$$
Regards