Q: In which of the following situations will an applied force do negative work on a body?
(a)The applied force and displacement of the body are at 135° to each other
(b)The applied force and displacement of the body are parallel to each other
(c)The applied force and displacement of the body are perpendicular to each other
(d)The applied force and displacement of the body are at 45° to each other
Correct Answer: (a)
The correct answer is (d) 'The applied force and displacement of the body are at 45° to each other'. This question from the Science & Technology domain tests knowledge of Physics.