M
Ms. needs so much help
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fwhat is the law that states it?
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PHYSICS... Why would two different objects with different masses fall at the same time?
Hello.
This is the answer for your question. Hope you like it.
In an ideal situation, all objects dropped from the same height will land at
the same time. Gravity causes the same acceleration for everything.
Gravity pulls down on an object. The object's mass resists the pull. This
resistance is called inertia. In an ideal situation the heavier object gets
pulled harder, but resists harder as well. Both the heavier and lighter
object therefore move the same way.
In a real situation, the air has an effect. As an object moves through the
air, it must push the air out of the way. Small objects, such as marbles,
feel very little air resistance. The weight is much more than the air
resistance, so the air resistance does not matter very much. For a ping-pong
ball, the weight is very small compared to the air resistance. Air
resistance slows a ping-pong ball.
Very large objects are slowed by air resistance. A heavy man with a
parachute is slowed. Before the parachute opens, the man must push a small
amount of air out of the way as he falls. He feels very little air
resistance until moving very fast. After opening, the wide parachute must
push much more air out of the way. The greater air resistance slows down
the man with the open parachute.
As an example, drop a flat full-sheet of paper and a crunched up half-sheet
of paper. They will not fall together. The full sheet is heavier, but
falls slower.
Another good example is a large book and an index card:
1) When dropped alongside each other, the book hits the floor first. The
card is slowed very much by air resistance because it is both wide and
light.
2) When the card is against the underside of the book, they fall together.
The air tries to slow the card, but the book keeps the card moving.
3) When the card is lying on top of the book, they drop together. The book
pushes the air out of the way for the card. With no air resistance, the
card falls just as fast as the book.
Hope you like it. Thank you.
This is the answer for your question. Hope you like it.
In an ideal situation, all objects dropped from the same height will land at
the same time. Gravity causes the same acceleration for everything.
Gravity pulls down on an object. The object's mass resists the pull. This
resistance is called inertia. In an ideal situation the heavier object gets
pulled harder, but resists harder as well. Both the heavier and lighter
object therefore move the same way.
In a real situation, the air has an effect. As an object moves through the
air, it must push the air out of the way. Small objects, such as marbles,
feel very little air resistance. The weight is much more than the air
resistance, so the air resistance does not matter very much. For a ping-pong
ball, the weight is very small compared to the air resistance. Air
resistance slows a ping-pong ball.
Very large objects are slowed by air resistance. A heavy man with a
parachute is slowed. Before the parachute opens, the man must push a small
amount of air out of the way as he falls. He feels very little air
resistance until moving very fast. After opening, the wide parachute must
push much more air out of the way. The greater air resistance slows down
the man with the open parachute.
As an example, drop a flat full-sheet of paper and a crunched up half-sheet
of paper. They will not fall together. The full sheet is heavier, but
falls slower.
Another good example is a large book and an index card:
1) When dropped alongside each other, the book hits the floor first. The
card is slowed very much by air resistance because it is both wide and
light.
2) When the card is against the underside of the book, they fall together.
The air tries to slow the card, but the book keeps the card moving.
3) When the card is lying on top of the book, they drop together. The book
pushes the air out of the way for the card. With no air resistance, the
card falls just as fast as the book.
Hope you like it. Thank you.
let us take an example m and M m is small mass now force applying gravitational law let E be mass of earth now force on m f =GmE/r^2 accerlation is GE/r^2
F= GME/r^2 here accelartion is GE/r^2
which accelartion due to gravity g
so whole conclusion is it's due to they have accelartion.....
yo!!!!!
F= GME/r^2 here accelartion is GE/r^2
which accelartion due to gravity g
so whole conclusion is it's due to they have accelartion.....
yo!!!!!
hobart_elf
New member
The Potential Energy possessed by the objects by virtue of their height (Energy was expended in getting them up there) is transformed into Kinetic Energy on the way down.
PE = mgh and KE = 0.5 mv^2
Notice carefully that the mass (m) appears on both sides of the equation.
It can therefore be deleted.
In other words - mass doesn't come into it at all!
PE = mgh and KE = 0.5 mv^2
Notice carefully that the mass (m) appears on both sides of the equation.
It can therefore be deleted.
In other words - mass doesn't come into it at all!