how fast will a object be traveling when drppped from 30 feet high

1 answer

1. I assume that you mean what will the velocity of an object be at impact when dropped from a height of 30 feet?
   
   Using h = Vo(t) + 32.2(t^2)/2 and assuming zero velocity when dropped,
   30 = (0(t + 32.2(t^2)/2
   60 = 32.2t^2
   t^2 = 1.863 making t = 1.365 sec.
   
   From Vf = Vo + 32.2t, the velocity at impact becomes Vf = 32.2(1.365) = 43.95ft./sec.

   Answer ID
   525839

   Created
   April 5, 2011 4:55pm UTC

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   0

   URL
   https://questions.llc/answers/525839