units of momentum
Ns or kgms⁻¹
impulse formulae
I=Ft or I=mv-mu
power formula
P=Fv when F is the driving force
F max formula
F max=µR
what force is not used in work-energy principle
gravity
restitution formula
(u₁-u₂)e=(v₂-v₁)
what force is equal and opposite on a pulley
tension