What angle? using distance.?

Question

Luckily, the teaching assistant did not throw the lab report in the trash. If the trash can is 40m away from her desk, at approximately what angle would she need to throw the lab report so it would reach the trash can?

Answer 1

Distance alone is insufficient, since the angle will vary acording to the speed at which the report exits the teacher's grasp.

Also, declare assumptions such as ignore air friction.

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