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29 Cards in this Set
 Front
 Back
thin hoop about symmetry axis

MR2


thin hoop about diamter

1/2 MR2


point mass about axis

MR2


disk or cylinder about symmetry axis

1/2 MR2


thin rod about perpendicular axis through center

1/12 Ml2


thin rod about perpendicular axis through end

1/3 Ml2


solid sphere about diameter

2/5 MR2


thin spherical shell about diamter

2/3 MR2


second condition of equilibrium

torque=f1d1f2d2f3d3


newton's second law for rotation

net torque=moment of inertia X angular acceleration


angular momentum

L=Iw


machine's mechanical advantage

MA=output force/input force


efficiency

eff=Wout/Win


revs to radian conversion

1rev=2pirad


theta

theta=s/r


conversion from angle in radian to angle in degrees

theta(rad=(pi/180) x theta(degree)


angular displacement

angular displacement=change in arc length/distance from axis


angular speed

average angular speed=angular displacement/time interval


angular acceleration

average angular acceleration= change in angular speed/


wf=

wf=wi+(angular acceleration)(t)


angular displacement

wit + 1/2(angular acceleration)(t2)


wf2

wf2=wi2+ 2(angular acceleration)(angular displacement)


angular displacement

angular displacement=1/2(wi+wf)(t)


tangential speed

distance from axis X angular speed


tangential acceleration

tangential acceleration=distance from axis X angular acceleration


force that maintains circular motion

Fc=mass X (tangential speed)2/distance to axis


force that maintains circular motion

Fc=mass X distance to axis X (angular speed)2


gravitational force

Fg=G(m1m2)/r2


Gravitational constant

G=6.673X1011
