Asked by Sarah

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?
Answered by bobpursley
What time does it take for an object to fall 160m?
Answered by Matthew
160 = .5gt^2

= 5.7s
Answered by Sharon
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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