Answer the following with reference to physical work done by a constant force acting…
PHYSICS · Multi-part · CBSE · Physics · Work and Energy · Work and Energy
Problem
Answer the following with reference to physical work done by a constant force acting on a body.
(i) Define physical work when a constant force displaces a body.
(ii) State the condition under which the work done is positive. Give one everyday example and clearly state the directions of force and displacement in your example.
(iii) State the condition under which the work done is negative. Give one everyday example and clearly state the directions of force and displacement in your example.
(iv) State the condition under which the work done is zero. Give one everyday example and clearly state the directions of force and displacement in your example.