Two students pull a wooden crate along a smooth horizontal floor through a distance of
PHYSICS · Multi-part · CBSE · Physics · Work and Energy · Work and Energy
Problem
Two students pull a wooden crate along a smooth horizontal floor through a distance of 5m. Student A exerts a horizontal force of 50N and Student B exerts a horizontal force of 70N, both in the same direction as the displacement.
(i) Calculate the work done by each student separately.
(ii) Calculate the total work done on the crate by the two students together.
(iii) In obtaining the answer to part (ii), did you have to use vector addition of forces or algebraic addition of individual work values? Give a reason for your choice.