March 2nd, 2008, 07:37 PM  #1 
Newbie Joined: Oct 2007 Posts: 10 Thanks: 0  Rate of Change problem.
I am having a hard time with the start of a word problem regarding rate of change. It is pretty easy (or at least it seems)... but i can't get started with it... any help will be appreciated again!!! Question  A baseball diamond has the shape of a square with sides 90 feet long. A player is running from first to second base at a speed of 28 feet per second. Find the rate at which the distance from home plate is changing when the player is 30 feet away from second base... And also A player is running from second base to third base at a speed of 28 feet per second is 30 feet from third base. At what rate is the players distance "s" from home plate changing?  I am thinking that I have to use Pyg Ther  but i am not sure... Thank you everyone... and i am so grateful for this message board!!! 
March 4th, 2008, 02:21 AM  #2 
Global Moderator Joined: Dec 2006 Posts: 21,132 Thanks: 2340 
Where is home plate in relation to the diamond?

March 4th, 2008, 08:38 AM  #3 
Newbie Joined: Oct 2007 Posts: 10 Thanks: 0 
Good morning Skipjack, Home plate is on the bottom of the diamond. (hopefully this works) 2nd base 3rd base 1st base Home Plate Hopefully that helps.. because I am lost.. I looked at this again last night and was just as stumped as before 

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