a metal ball and a plastic ball of equals size are dropped together.


Grape juice , Monday, 9th of August 2010 05:35:44 PM

does the metal ball hit the floor first?
 
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Biscuit , Tuesday, 10th of August 2010 01:21:21 PM

They hit the same time. Gravity pulls everything down at the  
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same speed. This is ONLY if the air resistance is the same for both  
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objects.  
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In the moon with no resistance they will hit the ground same time.  
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Lolli , Wednesday, 11th of August 2010 04:33:38 PM

theoritically,it will hit the ground at same time.  
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v^2 - u^2 = -2gs  
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v = u - gt  
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you can see the mass doesnt come into play  
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but the air resistance may slow the plasic ball  
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Gare Bear , Thursday, 12th of August 2010 06:08:16 AM

First what type of metal is being used & how long is the drop.  
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If 2 things of equal size are dropped the object with the heaver mass will  
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hit the ground first like if you dropped a basket ball & a fist full of  
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uranium for example the uranium is most likely to hit the ground first. Do  
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to how many protons neutrons & electrons in the atom of that element. But  
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if you mold it to become flat is might be slowed do to having to move  
threw the airs viscosity because the ball is no longer round but  
flattened. But all you need to know is what king of metal ur using & what  
height ur dropping it from.  
 
 
 
 
 

Sugah Buggah , Friday, 13th of August 2010 09:24:00 PM

No.  
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sap , Saturday, 14th of August 2010 02:28:44 PM

If dropped in a vacuum, they will hit the ground at exactly the  
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same time. In atmosphere, resistance on the plastic one will be more  
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apparent.  
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Honeypie , Sunday, 15th of August 2010 04:45:02 PM

well it depends .. where.. what invironment.. If ur on the moon  
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then they would hit the ground at the same time.. on earth the density of  
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the metal ball will pull it faster towards earth because the terminal  
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velocity of the metal ball is faster then the plastic ball..  
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it just depends on where ur at...  
 
 
 
 
 

the boy , Monday, 16th of August 2010 03:55:52 AM

You said equal size, you did not say equal mass or equal  
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volume. Considering air resistance, a larger(volume) ball would receive  
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more. I general all things accelerate toward the earth at the same rate,  
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but air resistance slows some things more than others.  
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Mama , Tuesday, 17th of August 2010 08:23:30 PM

no the force of gravity is equal on all objects the hit at the  
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same time, though air resistance can play a partin objects with more  
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surface area. but on balls no.  
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Phat Barbie , Wednesday, 18th of August 2010 08:19:42 AM

They should land at the same time, if the plastic ball is not  
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so light that air resistance can affect its fall. (For example, a hallow  
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ping pong ball.  
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Babs! , Thursday, 19th of August 2010 04:16:29 PM

Yes, the metal ball does hit first *unless* they are the same  
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weight as well - I assumed they weren't because you only specified size.  
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Little Foot , Friday, 20th of August 2010 04:46:11 AM

no - they hit at the same time - gravity works the same on all  
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objects. (assuming there is no affect because of air resistance).  
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