Wirk (physics)

(Reguidit frae Wirk (pheesics))

In physics, a force is said tae dae wirk if, when actin on a body, there is a displacement o the pynt o application in the direction o the force.

Baseball pitching motion 2004.jpg
A basebaw pitcher daes positive wirk on the baw bi applyin a force tae it ower the distance it muives while in his grip.
Common seembols
SI unitjoule (J)
In SI base units1 kgm2/s2
Derivations frae
other quantities
W = Fs
W = τ θ


The SI unit o wirk is the joule (J), named after yer man James Prescott Joule, a 19t-century Inglis physicist frae Salford. It is defined as the wirk tae exert a force o ane newton through a displacement o ane metre.