Homework Help: physics

Posted by Sarah on Tuesday, September 21, 2010 at 1:34pm.

The pilot of an airplane traveling 240 km/h wants to drop supplies to flood victims isolated on a patch of land 160 m below. The supplies should be dropped how many seconds before the plane is directly overhead?

physics - bobpursley, Tuesday, September 21, 2010 at 1:39pm
What time does it take for an object to fall 160m?
physics - Matthew, Wednesday, February 9, 2011 at 7:23pm
160 = .5gt^2

= 5.7s
physics - Sharon, Tuesday, September 4, 2012 at 10:06am
The cliff divers of Acapulco push off horizontally from rock platforms about 30.6 m above the water, but they must clear rocky outcrops at water level that extend out into the water 5.0 m from the base of the cliff directly under their launch point. See the figure. What minimum pushoff speed is necessary to clear the rocks? (m/s)

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