Question

Think of the term that fits into or defines the given statement and fill in the given boxes with the correct spellings of that term.

If the angle between the applied force and direction of displacement is obtuse, work done by a force on a body is __________.

Answer 1

1. The work done by a body along the direction of force is maximum.
2. The work done, when the angle between the force and displacement is acute (less than $90°$) is positive.
3. The work done, when the angle between the force and displacement is at the right angle is zero.
4. The work done, when the angle between the force and displacement is obtuse (more than $90°$) is negative.

Hence, if the angle between the applied force and direction of displacement is obtuse, work done by a force on a body is negative.