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work
ΔE
FIId
Joules
can be pos or neg
if Δy = 0,
V0y = -Vy
Fc =
Fc = m v²/r
v= 2rpi/T
g =
g = Gm/r²
conservative forces
path taken does NOT affect the work done
Fg and Fs
mechanical energy is constant
non-conservative forces
path taken DOES affect work done
Ff, Ft
mechanical energy of system changes
power
P = W/T or ΔE/T
P = FIIv
watts
escape velocity
v = √ 2GM/r
elastic collision
total kinetic energy of both objects before and after is the same
can happen when objects bounce, but doesnt have to be elastic