Question

Is there mechanical work done if the direction of work and the displacement perpendicular to each other?

Answer 1

No that's not mechanical work done .

If displacement happens then whatever the direction be the work is done except nπ/2 values of theta

In that case the general formula W=Force×Distance can't be used

Then We have to include theta

• W=FdcosØ

Put Ø=90

• W=Fdcos90
• W=Fd0
• W=OJ

No work done