Question

When no work is done in physics 10 examples

Answer 1

Explanation:

1. Sitting on a chair for hours
2. Sliding a box on a smooth floor
3. Lifting a book

Answer 2

Answer:

• Examples
• you sit on a chair for hours .No work is done as there is no involvement of motion.
• if a block is moving on a smooth horizontal surface no work is done.
• if you push a wall but it doesnt move then no work is done.
• sleeping for many hours is also an example of no work done.
• you are carrying two bags in your hands and you are not moving ,then no work done.
• When we carry a luggage and move ,then no work is done.
• applying a force to roll a ball of some distance and then applying same force over same distance in opposite direction returning the ball to its original starting point,then no work is done.
• I throw a ball up with a velocity ,it goes up and cones down to the same location , then no work is done.
• If i hold a book for sometime, then no work is done.
• If pendulum of the clock is oscillating already by itself there is no net work done on it by the gravity in oscillations,then no work is done.