Question

Mention the cases when work done is zero?3m​

Answer 1

Explanation:

when there is no force is done

force is 0

Answer 2

Cases when work done is zero:

• Force and displacement are perpendicular (when ø is 90⁰).
• When there is no displacement (That is s=0).

Work = FScosø

Force & Acceleration:

$\setlength{\unitlength}{2mm}\begin{picture}(0,0)\thicklines\put(0,0){\line(3,0){3cm}}\multiput(1,0)(1,0){14}{\qbezier(0,0)(-0.4,-0.4)(-0.9,-0.9)}\put(4,0){\line(0,3){0.6cm}}\put(10,0){\line(0,3){0.6cm}}\put(4,3){\line(3,0){1.2cm}}\put(6,1){ \sf m_1 }\put(2,5){ \sf\xrightarrow{Acceleration} }\put(-3,1){ \xrightarrow{\sf Force\quad} }\end{picture}$