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December 21, 2014

Homework Help: Physics

Posted by Zac on Saturday, July 14, 2012 at 12:10am.

Sally Sue is atop a 10.0 m high platform where she will drop an apple straight down. On the ground
below, and 20.0 m (horizontally) away, Betty Lou will shoot an arrow at the apple. If Betty's arrow has a
release speed of 25.0 m/s, at what angle must she fire that arrow, and at what time must Sally drop the
apple (relative to the firing of the arrow), such that the arrow will strike the apple at the highest point in
the arrow's trajectory?

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