A ball is thrown up from the top of the tower. For parts a-c, state whether the ball’s acceleration is larger than g, equal to g, zero, or -g (assume up is positive and that g = 9.80 m/s^2). Just after leaving your hand and you are no longer touching it. When the ball is at the top of its path. Just before hitting the ground. Draw graphs of position vs. time, velocity vs. time, and acceleration vs. time for the ball from the instant it leaves your hand until the instant before it hits the ground.

The acceleration due to gravity (g) is always directed towards the ground. Thus, the acceleration of the ball is always -g (a) When the ball is moving upwards the acceleration of the ball is -g (b) When the ball is at the top of the path the acceleration is again -g (c) Just before hitting the ground the acceleration is -g (d) The following figures shows the graphs for position vs. time, velocity vs. time, and acceleration vs. time for the ball from the instant it leaves the hand until the instant before it hits the ground. Figure1: Position vs. time graph Figure 2: Velocity vs. time graph

ay -8 Figure 3: Acceleration vs. time graph

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