Work is done when we hold a pile of books in our hands.

What is the amount of work done by a boy when (i) he holds a bundle of books of mass 2 kg for 5 minute? (ii) be lifts up the same bundle of books through 1 metre to keep it on his study table?

Work is said to be done when :

Work is always done on a body when

Explaint why, a charged body loses its charge when we touched it with our hand.

(a) When do we say that work is done ? Write the formula for the work done by a body in moving up against gravity. Give the meaning of each symbol which occurs in it. (b) How much work is done when a force of 2 N moves a body through a distance of 10 cm in the direction of force?

Numerical problems Calculate Work done in holding a 15 kg bag while waiting for a bus IO minutes

What amount of work is done in reading this book in terms of scientific definition of work?

We do not sense any pain when we clip our nails or cut our hair. Why?

Answer true or false. Work is done when we try to push a wall.

When we hold a suitcase steady at some height