Question

C. Statements given below are incorrect. Write the correct statements.
1. Work is done when you hold a heavy suitcase in your hand.
2. Work done by a body is the product of power and displacement.
3. Work is done when a force causes displacement at right angles to its own direction.
4. A teacher taking a class while standing, does work.
5. The SI unit of work or energy is calorie.​

Answer 1

Answer:

1.work is not done when you hold a heavy suitcase in your hand

2 work done by a body is the product of force and displacement

3 work is done when force causes displacement to its own direction

4 a teacher taking class while standing does not work

5 the s.i unit of work is joule