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A pilot of an air plane travelling at 130km/hr wants to drop food supplies on a patch of land 250m below. The package has to be dropped so that it reaches the people below when the plane is directly over head.
a) What is initial horizontal velocity (m/s) when the package is dropped?
b) what is the initial vertical velocity when package is dropped?
c) how many seconds before should the package be dropped if it is to each the people below when the plane is directly overhead.
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