2. A motion of a tennis ball is defined by the equations x = 3t +1 and y = 3+ 5t – 4.905ť², where x and y are expressed in meters while t is expressed in seconds. Determine (a) velocity at t = 0.8s , (b) the horizontal distance that the tennis ball traveled before hitting the ground.

Q22. As shown in the image below, a motorcycle travels along circular path from point A to point B. Its decreases at at = − (C. s) m/s², where Cis a constant and s is the distance (in m) traveled along the path measured from point A. If the constant C is 0.002, and the motorcycle has speed of 32 m/s at point A, determine the magnitude of its total acceleration (in m/s2) at point B. Please pay attention: the numbers may change since they are randomized. Your answer must include 2 places after the decimal point. .A Your Answer: Answer A 300 m n 90° B