Recent content by Lil'Physicist

I ended up with sin 23=v(y-axis)/v for the y-axis velocity and cos 23=v(x-axis)/v for the x-axis velocity. I do not understand which kinematics equation to substitute this into because of the two unknown variables. If someone could show the first few steps of the problem, I need that to get...

Homework Statement 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? Homework Equations Trigonometric functions ? The Attempt at a Solution Recently...