Posted by Kayla on Thursday, August 22, 2013 at 6:44pm.
The pilot of an airplane traveling 180km/h wants to drop supplies to flood victims isolated on a patch of land 160m below. The supplies should be dropped how many seconds before the plane is directly overhead?

science  Henry, Thursday, August 22, 2013 at 7:50pm
h = Vo*t + 0.5g*t^2 = 160 m.
0 + 4.9t^2 = 160
t^2 = 32.65
t = 5.7 s. = Time to strike ground.

science  isabelle, Monday, October 14, 2013 at 7:38pm
THE PILOT OF AN AIRPLAINE TRAVELING WITH A HORIZONTAL SPEED OF 70 M/S TO DROP RESCUE SUPPLIES TO PHYSICS STUDENTS STRANDED ON AN ISLAND 240M BELOW. sOLVE FOR HORIZONTAL DISPLACEMENT.

Physics  Mathew, Monday, September 26, 2016 at 7:39pm
A dart is being thrown at a board that is 2.00 m away. When it hits the board it is 0.306 m below the point where it was aimed and it was thrown at 8.00 m/s. How long was the dart in the air?
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