1. The problem statement, all variables and given/known data A long jumper leaves the ground at an angle of 23 degrees and travels through the air for a horizontal distance of 8.7m before landing. What is the takeoff speed of the jumper? 2. Relevant equations Trigonometric functions ? 3. The attempt at a solution Recently started physics and am going over stuff from the last two tests. Got stuck on this one and needed some help. None of the three standard kinematics equations allows me to solve this (I end up having two unknowns for any equation I choose), and trigging out the velocity in the beginning leaves me with a triangle that only has angle measures. How can I start on this problem?