Solve the Go.a ball was dropped from a height 80m above a concrete floor. It rebounded to the height 1\2 of its previous height at each rebound. After how many bounces is the ball 2.5 high
56m/s
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need answer
To solve this problem, we need to determine the number of bounces it takes for the ball to reach a height of 2.5 m.
We know that each time the ball rebounds, it reaches a height that is half of its previous height. So, after the first bounce, it reaches a height of 80 * 1/2 = 40 m.
After the second bounce, it reaches a height of 40 * 1/2 = 20 m.
After the third bounce, it reaches a height of 20 * 1/2 = 10 m.
After the fourth bounce, it reaches a height of 10 * 1/2 = 5 m.
After the fifth bounce, it reaches a height of 5 * 1/2 = 2.5 m.
Therefore, the ball reaches a height of 2.5 m after 5 bounces.