Inline roller skater is skating on a curved path as shown. The curved path is described as y=f(x)=D0.18x2. The velocity of the skater once he reaches point A is 4.9 m/s which is increasing at rate of 0.54 m/s?. Calculate the magnitude and direction of skater's acceleration at point A. Note that yA = 9.3 m.

Inline roller skater is skating on a curved path as shown. The curved path is described as y=f(x)=D0.18x2. The velocity of the skater once he reaches point A is 4.9 m/s which is increasing at rate of 0.54 m/s?. Calculate the magnitude and direction of skater's acceleration at point A. Note that yA = 9.3 m.