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May 18th, 2012, 12:02 AM  #1 
Senior Member Joined: Oct 2009 Posts: 895 Thanks: 1  A body is released from a great fall freely towards earth an
Hi all Can explain to me more about that this question because I don't understand fully A body is released from a great fall freely towards earth another body is released from the same height exactly one second later . Find the separation between the bodies after two second of the release of the second body ? [color=#008040]As I understand It wants distance? But what is other givens ? g = 9.81 t= 2s u = zero How I can find the distance if the time of other body not given ?[/color] 
May 18th, 2012, 12:15 AM  #2 
Senior Member Joined: Jul 2010 From: St. Augustine, FL., U.S.A.'s oldest city Posts: 12,155 Thanks: 466 Math Focus: Calculus/ODEs  Re: A body is released from a great fall freely towards eart
If we set time t = 0 to be at the time of the release of the second body, then the distance traveled by the first body at time t is: and the distance traveled by the second body is: and the separation between the bodies at time t is then: 
May 18th, 2012, 12:20 AM  #3 
Senior Member Joined: Oct 2009 Posts: 895 Thanks: 1  Re: A body is released from a great fall freely towards eart
Good I got H = 24.52 m 
May 18th, 2012, 08:14 AM  #4 
Senior Member Joined: Jul 2010 From: St. Augustine, FL., U.S.A.'s oldest city Posts: 12,155 Thanks: 466 Math Focus: Calculus/ODEs  Re: A body is released from a great fall freely towards eart
If you are going to round to two decimal places, you should write h = 24.525 m ? 24.53 m.


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body, earth, fall, freely, great, released 
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