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## Homework Statement

An athlete executing a long jump leaves the ground at a 29.6° angle and travels 7.43 m. What was the take-off speed?

I have 4 unknown variables: t, initial velocity in the x direction (Vix), initial velocity in the y direction (Viy). and the initial speed which I'm trying to find (Vi).

Which kinematic equations do I use? I've been stuck on this problem for a day now.