what is its acceleration just before it hits the ground?
2006-11-08 15:46:57 · 3 answers · asked by lena 1 in Science & Mathematics ➔ Physics
32 feet per second per second. The acceleration is constant while the ball is in the air. It is determined by the force of gravity. The ball's speed will vary, but acceleration is constant.
2006-11-08 15:51:42 · answer #1 · answered by Doctor J 7 · 0⤊ 0⤋
the same as before it hit the ground, the same as when it hits the ground, the same after it hits the ground. Acceleration is a constant.
What your instructor is trying to show you is that everything(within the earth's gravitational field) is always accelerating towards the center of the earth. This includes you, your books, your house, all of the balls you've thrown in the air, and even satellites in orbit.
2006-11-08 23:53:46 · answer #2 · answered by something 3 · 0⤊ 0⤋
The ball falls due to the pull of gravity, the standard gravity acceleration is about 10 m/s-² ( actually the correct value is about 9.9... something.. )
2006-11-09 02:13:43 · answer #3 · answered by hirzi 2 · 0⤊ 0⤋