Question

Paper Questions
Marks: 1/30
In which case is the work done zero?
A
07:11
Force and displacement are in the same
direction
Force and displacement are at an angle of
75
Force and displacement are at an angle of
45°
Force and displacement are perpendicular
to each other
K​

Answer 1

Work done is 0 when force & displacement are perpendicular.

$\color{orange}{\boxed{Work(W)=FS\cos\theta}}$

Where;

• F-force
• S-displacement

when its perpendicular angle becomes 90°,

Since cos90° is 0,

work done becomes 0.

HOPE THAT HELPS!!