Work and Energy

 

Pushing Crates out of Blocked Doorways
First off, work in science is when you transfer energy to another object. work
crate
So lets say you have to push a 50 kilogram box 3 meters out of the doorway because everyone is too lazy to do it themselves.

To find Work you usethe equations to the right. With the varibles being:
W = Work
F = Force
d = distance
m = Mass
g= Gravity (usually a constant 9.81 m/s^2)

work equation
box

To find you work insert the only three varibles you got, Gravity, distance, and Mass.
W= (50kg)(3m)(9.81m/s^2)
W= 1471.5 Joules

And now you've got your answer, a moved box, and a clear path to run from the zombies