Note: The normal component of relative
acceleration, aC/A|n is directed from C to
A (Fig 2A, 2B).
Its magnitude is |AC| ω2 (Fig 2C). The tangential component of relative
acceleration,
aC/A|t is normal to the line
from C to A (Fig 2A,2B). Its
direction comes from the sign of the
angular acceleration (Fig. 2C). Its magnitude is |AC| α (Fig 2C).
Add
vectors on RHS to obtain vector diagram for
aC on LHS.
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