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18 terms

linear/rotational motion

STUDY
PLAY
linear momentum
p=mv or integral of force net, multipled by time
impulse
change in momentum
elastic collision
kinetic energy is conserved
inelastic collision
kinetic energy is not conserved
completely inelastic collision
bodies stick together after a collision
angular position
theta = s/r
angular velocity
w=dthetha/dt
angular acceleration
fish=dw/dt
converting speed linear to rotational
v=wr
converting acceleration
at=fish(r), ar=w^2(r)
kinetic energy
1/2Iw^2+1/2Mv^2
rotational inertia hoop
I=MR^2
rotational inertia ring
1/2M(R1^2+R2^2)
torque
t=Ifish, rxf
work
W=t(change in theta)
power
p=tw
angular momemtum
l=m(rxv),=rmvsin pheee, Iw
torque net
t=change in L/change in t