### CURVILINEAR MOTION: NORMAL AND TANGENTIAL

2012-5-30u2002·u2002Given: A roller coaster travels along a vertical parabolic path defined by the equation y = 0.01x2. At point B, it has a speed of 25 m/s, which is increasing at the rate of 3 m/s2. Find: The magnitude of the roller coaster's acceleration when it is at point B. Plan: 21. The change in the speed of the car (3 m/s ) is the

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