For a certain interval of motion the pin A is forced to move in the fixed parabolic slot by the horizontal slotted arm which is elevated in the y-direction at the constant rate of 6.0 in./sec. All measurements are in inches and seconds. Calculate the velocity v and acceleration a of pin A when x = 2.5 in. Answers: x = y²/9 A v = 6.32 in./sec a = .362 in./sec² y