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- Homework Statement
- velocity:20m/s we're on 5m, target is on 10m. What are the possible launching angles? The diatance is 40m

Air resistance can be neglected.

- Relevant Equations
- none

if the target is lower than me, the formula is below, but if it's higher as in the task, a whole different formula is required I think.

a = 9.8 * distance^2 / velocity^2

phi = Arctan(distance / height_diff)

angle_if_elevation = ( Arccos((a - height_diff) / Sqroot(height_diff^2) + distance^2)) + phi ) / 2

a = 9.8 * distance^2 / velocity^2

phi = Arctan(distance / height_diff)

angle_if_elevation = ( Arccos((a - height_diff) / Sqroot(height_diff^2) + distance^2)) + phi ) / 2