what is its acceleration when it reaches its maximum altitude?
2006-11-08 15:33:41 · 9 answers · asked by lena 1 in Science & Mathematics ➔ Physics
zero- because it reverses its motion to descend
2006-11-08 15:36:20 · answer #1 · answered by hiding1959 5 · 0⤊ 1⤋
from the moment it start to move the vector of accelecration is constant with direction to the center of the earth. till the ball reaches the top position the vectors of distance and g are in opposite direction while from the maximum height and thereafter they have the same direction. that is why at the first half of the motion the ball slows down and then it picks up speed again.
2006-11-09 01:17:39 · answer #2 · answered by Emmanuel P 3 · 0⤊ 0⤋
The acceleration is -9.8 m/s/s due to gravity, and this acceleration is constant. At maximum height, the ball's velocity will be zero, but the acceleration is still -9.8 m/s/s.
2006-11-08 23:41:39 · answer #3 · answered by Anonymous · 0⤊ 0⤋
None
The balls maximum acceleration are when it first leaves someones hands and right before it hits the ground.
2006-11-08 23:42:32 · answer #4 · answered by Matt W 3 · 0⤊ 0⤋
I can't believe so many are wrong.
Acceleration is a constant. Even though the ball is moving up, it's always accelerating towards the ground. 9.8m/s^2 or 32ft/s^2.
2006-11-08 23:38:39 · answer #5 · answered by something 3 · 0⤊ 0⤋
When the ball reaches its highest altitude it will have no velocity and therfore it will have no acceleration until it starts to fall downward.
2006-11-08 23:36:14 · answer #6 · answered by Anonymous · 0⤊ 1⤋
Acceleration will always be 32 ft/sec^2. This is due to gravity.
2006-11-08 23:38:03 · answer #7 · answered by teran_realtor 7 · 0⤊ 0⤋
Zip.
2006-11-08 23:47:34 · answer #8 · answered by Rageling 4 · 0⤊ 0⤋
zero
2006-11-08 23:41:26 · answer #9 · answered by cork 7 · 0⤊ 0⤋