Two similar object with different mass falling at the same time and speed.?
回答 (16)
2006-05-29 9:38 am
✔ 最佳答案
for gaining speed acceleration is required.acceleration is provided by a force.the force which provides acceleration to falling bodies is the force of gravity or the gravitational pull.the speed of any falling object is given by the formula
v=u+gt where u is the initial velocity which is zero for an object falling from rest,v is the velocity after a lapse of time t and g is the acceleration due to gravity which is approximately 10 metre/sec/sec.you will find that the mass of the object or the weight which is nothing but the force with which the earth is pulling it (w=mg) doesn't figure in this formula at all.The momentum of the heavier object will be more as momentum is the product of the mas and the velocity
if at all there is any marginal difference in the speeds it could be attributed to the resistance provided by the atmosphere
2006-05-29 4:17 pm
Both are pulled with same acceleration due to gravity.
2006-05-29 3:43 pm
You cannot consider 'objects' as a single item when explaining why gravity doesn't favor heavier items. All items must instead be considered as a large mass of atoms, each experiencing the same 'pull' from gravity. Nomatter how many atoms there are, they are each only considered a single object experiencing the same gravity pull.
2006-05-29 3:37 pm
Gravity pulls on both the same. But if this were not in a vacuum, the friction of the air would have an effect. But in a vacuum, a rock and a feather would fall at the same speed.
2006-05-29 3:31 pm
The heavy one FALLS first..
W= m * g ....G = gravitaional force
gravitaional force is same for every object...
Mass changes from object to object...
BUT IN VACCUM
In vaccum the gravitational force doesnt work(EX: SPACE)
It takes same time for every object to travel.
W= m * g ....G = gravitaional force
gravitaional force is same for every object...
Mass changes from object to object...
BUT IN VACCUM
In vaccum the gravitational force doesnt work(EX: SPACE)
It takes same time for every object to travel.
2006-05-29 3:31 pm
Force of gravitation between an object and earth = (G * m *M)/R^2, where m is mass of object, M is mass of earth, R is earth's radius and G is a constant.
Also the object is coming down due to F= m * g
Above 2 forces are equal, implying, g is not proportional to mass of the object.
So objects of different mass comes down with the same acceleration.
Now between paper and coin, with same acceleration, coin comes faster because air slows down paper; in vacuum both comes at the same time
Also the object is coming down due to F= m * g
Above 2 forces are equal, implying, g is not proportional to mass of the object.
So objects of different mass comes down with the same acceleration.
Now between paper and coin, with same acceleration, coin comes faster because air slows down paper; in vacuum both comes at the same time
2006-05-29 3:31 pm
hello there ; it could happen if these two objects are falling into an air free tube or room as if so they will be subjected to the gravity acceleration only and that is constant thus, they may have the same speed .
Haya
Haya
2006-05-29 3:30 pm
s=1/2gt2...you know i used to understand this stuff but that was over 30 years ago...now even though i know it's true now i'm sitting here wondering why the same force wouldnt accellerate a lighter object faster than a heavier one...oh well...too much cholesterol in my arteries tii worry about it now.........aha...wait...a light just went off..its coming to me now...i think ive got it.....yeah TACO...that really refreshed my memory....i basically resolved it using a slightly different rationale but what your comment really made it clearer.
2006-05-29 3:28 pm
Force acting on both the objects is same i.e. gravity. It is 981 cms/sec/sec. Since both obects are being subjected to identical force, (regardless of their own weight), therefore both will fall at the same speed.
2006-05-29 3:28 pm
The time required for a body to fall depends on its acceleration. Since the fall occurs due to gravity and the acceleration due to gravity is same for all objects irrespective of its mass, all objects fall with same speed.
2006-05-29 3:27 pm
The spreed (s) of a falling objects do not depend on the mass of an object. The equation is s=g*t where g is the acceleration of gravity 9.81m/s2
2006-05-29 3:26 pm
cause newton proved that both objects are pulled down equally by gravity...it doesnt depend on their mass but rather the velocity with which they're falling
2006-05-29 3:26 pm
this will only happen when in a vacuum. you can drop a bowling ball and a feather, and when in a vacuum, they will fall at the same speed.
2006-05-29 3:26 pm
due to potential energy
2006-05-29 3:25 pm
something about Galileo and a cliff.
i think because the gravity acting on each of the object is the same, so they fall with the same acceleration
i think because the gravity acting on each of the object is the same, so they fall with the same acceleration
2006-05-29 3:27 pm
There might be no air, at that place.
Because if there is air the heavier one will fall first.
Thats the law of physics & air & gravity.
Because if there is air the heavier one will fall first.
Thats the law of physics & air & gravity.
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