1. The problem statement, all variables and given/known data
How would you find the energy efficiency of a torsion catapult ? (one i built for project)
I have the Force at which im pulling the arm.
F = 20N
also the angle from origin to the point of release ( or when the ball leaves the arm)
Theta = 50 degrees
2. Relevant equations
Energy Efficiency = Energy Output/ Energy Input
E input =
3. The attempt at a solution
i have filmed the trajectory of my catapult using Video camera and logger pro software.
i do have velocity and acceleration in both x and y directions.
But how do i exactly find the Input energy of this particular system?