If you drop a ball and throw a ball horizontally at the same time from the same height, will they hit the ground at the same time?
I heard from someone that they will because gravity acts on the balls equally. Is that right?
If you drop a ball and throw a ball horizontally at the same time, will they hit the ground at the same time?
2007-11-06 10:45 am
回答 (14)
2007-11-06 10:55 am
✔ 最佳答案
yes you heard correctly'gravity acts on the balls equally' yes
2007-11-06 7:30 pm
if the balls are identical in every way, and released from the same elevation to arrive on ground of the same elevation, and neither has any vertical (up or down) motion imparted to it during release, and air resistance and loft are negligible, the two balls will arrive on the ground at the same time. The reason is that the vertical motion of both objects is obtained solely by gravity, which will act equally on both objects.
2007-11-06 6:49 pm
they will hit the ground at the same time if they have exact height and it depends on your throw and sometimes it depends on the ball.
2007-11-06 10:00 pm
they will both get to the ground the same time due to gravity which is 10m/s^2
2007-11-06 9:20 pm
Yes. But not at the same point
2007-11-06 8:41 pm
Yes it definately will.
When you use Newton's equations of motion, that it why we resolve problems both horizontally and vertically - mostly to work out the time of the fall, so then the horizontal distance can be worked out.
People who have said they won't hit the floor at the same time obviously don't understand basic physics principles.
When you use Newton's equations of motion, that it why we resolve problems both horizontally and vertically - mostly to work out the time of the fall, so then the horizontal distance can be worked out.
People who have said they won't hit the floor at the same time obviously don't understand basic physics principles.
2007-11-06 7:53 pm
Yes, gravity affects both balls equally. The horizontal motion of the thrown ball makes no difference because gravity acts vertically.
Even if air resistance is operating, both balls have the same vertical speed at every moment and thus have the same vertical component of air resistance, so (assuming they are identical) they still take the same time to hit the ground.
As long as the field is flat and you don't throw the ball so hard that the curvature of the Earth becomes important, they will absolutely hit the ground at the same time.
Even if air resistance is operating, both balls have the same vertical speed at every moment and thus have the same vertical component of air resistance, so (assuming they are identical) they still take the same time to hit the ground.
As long as the field is flat and you don't throw the ball so hard that the curvature of the Earth becomes important, they will absolutely hit the ground at the same time.
2007-11-06 7:22 pm
it will hit the ground at the same time, this is because the displacement ofthis two situation is the same but the distance is different. But this is also depends on how much force do u give to the ball.
2007-11-06 6:49 pm
No, because the ball you throw will have more energy - it will gain kinetic energy from you which will help it escape gravity in much the sense the planets orbit the sun without crashing into it.
So the ball you throw will touch the ground last as long as you don't throw it towards the ground - if you throw it horizontally at a 90 degree angle it will reach the ground last because the more energy something has, the less affected it is by forces such as gravity.
So the ball you throw will touch the ground last as long as you don't throw it towards the ground - if you throw it horizontally at a 90 degree angle it will reach the ground last because the more energy something has, the less affected it is by forces such as gravity.
2007-11-06 6:50 pm
No. At least not necessarily. How fast is the ball being thrown? From what height are these balls starting at?
Both of these can affect when each ball hits the ground.
Both of these can affect when each ball hits the ground.
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