An overhead view of part of a pinball game is shown. If the plunger imparts an initial speed of 2.0 m/s to the ball at time t = 0, determine the acceleration a of the ball (a) at time t = 0.15 s and (b) at time t = 0.28 s. At point F, the speed of the pinball has decreased by 18% from the initial value, and this decrease may be assumed to occur uniformly over the total distance traveled by the pinball. Use the values r= 130 mm and 0 = 51° A Answers: L- ·r (a) t = 0.15 s, a = (b) t= 0.28 s, a = -x B (i (i r D. E T ● i+ i i+ i F j) m/s² j) m/s²

An overhead view of part of a pinball game is shown. If the plunger imparts an initial speed of 2.0 m/s to the ball at time t = 0, determine the acceleration a of the ball (a) at time t = 0.15 s and (b) at time t = 0.28 s. At point F, the speed of the pinball has decreased by 18% from the initial value, and this decrease may be assumed to occur uniformly over the total distance traveled by the pinball. Use the values r= 130 mm and 0 = 51° A Answers: L- ·r (a) t = 0.15 s, a = (b) t= 0.28 s, a = -x B (i (i r D. E T ● i+ i i+ i F j) m/s² j) m/s²