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Inline roller skater is skating on a curved
path as shown. The curved path is
described as y= f(x)3D 0.18x2. The
velocity of the skater once he reaches point
A is 4.9 m/s which is increasing at rate of
0.54 m/s2. Calculate the magnitude and
direction of skater's acceleration at point
A. Note that yA = 9.3 m.
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