In which situation is no work considered tone be done by a force?
A) when the angle between the force and displacement is 180°
B) when the angle between the force and displacement is 90°
C) when the angle between the force and displacement is 45°
D) when the angle between the force and displacement is 0°
According to the technical definition of "work", no work is considered to be done by a force when the angle between the force and displacement is 90° . (B)
