Question

A potter moving vertically up the stairs with a suitcase on his head does work . why ?

Answer 1

try it by ur own...I'll help u

Answer 2

but i dont know and that is why i asked this question , give me the hints :)

Answer 3

and if you dunt mind can you teach me all types of questions like dis ?

Answer 4

1st make a block of mass m as I did in last question...

Answer 5

and coolie is holding it on his head...right?

Answer 6

yes right !

Answer 7

now u have to tell...who or what is exerting force on this load?

Answer 8

1st earth is pulling towards its center by force mg..right?

Answer 9

N

Answer 10

YES