A ball is thrown upward from the edge of a platform 15 m above the ground. The ball rises 12 m then falls to the ground. What is the vertical displacement of the ball?
To find the vertical displacement of the ball, we need to calculate the difference in height between its initial and final positions.
The ball is thrown upward from a platform that is 15 m above the ground, so its initial height is 15 m.
The ball rises 12 m, so its final height above the ground is 15 m + 12 m = 27 m.
Since the ball eventually falls back to the ground, its final height will be 0 m.
To find the vertical displacement, we subtract the initial height from the final height: 0 m - 15 m = -15 m.
Therefore, the vertical displacement of the ball is -15 m.