381 metres
a. 144 feet b. 96 ft/sec.
Still accelerating til it hits earth. ====================================== The height from which she dropped the ball is irrelevant. In any case, the ball was most likely moving at the greatest speed just as it hit the ground. The answer to the question is: zero.
The higher the ball is dropped from, the higher it will bounce back. This is due to potential energy converting to kinetic energy upon impact with the ground, propelling the ball higher when dropped from greater heights. Ultimately, the bounce height depends on factors like gravity, air resistance, and the material of the ball.
The ball dropped from 4m height has more kinetic energy just before it hits the ground because it has a higher velocity due to falling from a greater height. Kinetic energy is directly proportional to both mass and the square of velocity, so the ball dropped from 4m height will have more kinetic energy than the one dropped from 2m height.
The height from which the ball is dropped is the independent variable, as it is what is being manipulated. The height of the ball's bounce is the dependent variable, as it is what is being measured and is affected by the height from which the ball is dropped.
If dropped from the same height, they will hit the ground at the same time.
Assuming both were dropped from the same height above ground, in a vacuum both would hit the ground at the same time. In a significant atmosphere (e.g. average ground-level on Earch) the bowling ball would hit the ground first.
89
Yes
Since no energy was lost, we can conclude that it was an elastic collision.
Yes - the greater the height an item dropped the resulting bounce is higher
Yes - the greater the height an item dropped the resulting bounce is higher