Question

Give one example each in which a force does
(a) positive work
(b) negative work, and
(c) zero work.

Answer 1

Answer:

a) When you push a box,the angle is zero and if it has displacement it is positive work.

b) When u throw a ball high up, the work done by u is postive whereas the work done by gravity is negative.

c) if u are trying to move a boulder and its doesnt move, it is zero work