Question

1. work is done when you hold a heavy suitcase in your hand . give all the answers (no spamming I will report that)​

Answer 1

Answer:

1. when one hold a heavy suitcase in your hand no displacement is done . as W = f × d( displacement) , force might be applied but no displacement happens.

2. second answer is in the first one itself.

3. W= F× d cos¤ as ¤ is 90° = 0 so word done becomes zero.

4.teacher does not do work because she is only standing and not walking

5. si unit of work is joules and watt