Right, I managed to make Force equal to Hooke's Law and the kinetic energy equation, KE = 1/2mv^2.
If I get the answer in Joules from this equation, which is equal to Newton metres, and I divide through by the distance pulled back, surely then the I'd get a value in Newtons, which would be a...
Homework Statement
I've been tasked with designing a projectile launcher that must be built using either elastic bands or springs. The objective is to measure the launch velocity against the distance the projectile is pulled back before release. The launcher itself isn't supposed to be very...