Which of the following are examples of work being done on an object? Choose the 4 that apply.
This meme took a lot of WORK to make : r/physicsmemes
a
Carrying a box up a flight of stairs
b
Wind blowing against a tree
c
Holding a 25 kg barbell over your head
d
Lifting a bag of groceries
e
Carrying a bag of groceries to the car
f
Lifting a rock off the ground
g
Pushing a grocery cart through the store
h
Pushing on a car that will not move
a, c, d, f
The examples of work being done on an object are:
a) Carrying a box up a flight of stairs
c) Holding a 25 kg barbell over your head
d) Lifting a bag of groceries
f) Lifting a rock off the ground