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Work and Energy — Science STD 9 — Question

Maharashtra BoardEnglish MediumSTD 9ScienceWork and Energy1 Mark
Question
In which of the following case the work done by a force will be maximum: when the angle between the direction of force and direction of motion is $0^\circ$ or $90^\circ$?
✓

Answer

Work done will be maximum when angle between the direction of force and direction of motion is $0^\circ$ because,
$\text{W} =\text{F}\cos\theta\times\text{s}.$
And, $\cos\theta\ 0^\circ=1$ and $90^\circ=0$

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