In which of the following situation, the work done by a force on a body will be positive

Options :
  1. body does not move
  2. body moves perpendicular to the direction of applied force
  3. body moves along the direction of applied force
  4. body moves opposite to the direction of applied force

Answer and Explanation :-

Answer: Option 2


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It is hard to be angry when one has seen the sun rise,' she said.It seems to be true,' he admitted. 'I wonder why.'Because it makes one feel so small and insignificant. It has been rising forever and will rise forever no matter what we do or do not do. All our problems are as nothing to the sun.
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