Study the pictures given below and answer the questions:(a) In which o

1.	Study the pictures given below and answer the questions:(a) In which of the pictures above has work been done?(b) From scientific point of view, when do we say that no work was done?
Answer» (a) Girl studying : No work done Boy playing with ball: Work is done Girl watching T.V.: No work done Person lifting sack of grains : Work is done (b) No work is said to be done when force is applied but there is no displacement.

Study the pictures given below and answer the questions:(a) In which of the pictures above has work been done?(b) From scientific point of view, when do we say that no work was done?

Answer»

(a) Girl studying : No work done

Boy playing with ball: Work is done

Girl watching T.V.: No work done

Person lifting sack of grains : Work is done

(b) No work is said to be done when force is applied but there is no displacement.