centroid
x coordinate of the centroid for composite body
sum of x tilde times area over the sum of the area
MoI about x for composite body
Ix prime plus area times dy squared
average velocity
change in position over change in time
direction is tangent to
the path of motion
velocity direction
tangent to path of motion (t direction)
y coordinate of centroid for integral
integral of y tilde dA over integral of dA
MoI about y for integral
integral of x squared dA
average speed
total distance (NOT DISPLACEMENT) over total time
x dot equals
at equals
v dot (derivative of v wrt time)
x coordinate of centroid for integral
integral of x tilde dA over integral of dA
MoI about x for integral
integral of y squared dA
acceleration equals
vdv/vs or dv/dt
x double dot equals
x component of acceleration
an equals
v squared over rho
y coordinate of centroid for composite body
sum of y tilde times area over sum of area
MoI about y composite body
Iy prime plus area times dx squared
velocity equals
ds/dt
y double dot equals
magnitude of a
square root of an^2 plus at^2
radius of gyration for x
square root of Ix over area
radius of gyration for y
square root of Iy over area
if acceleration is negative, speed is...
decreasing
y dot equals
y component of acceleration
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