Question

Hi everyone, just need some help with this pendulum problem: Consider a ballistics pendulum experiment where m = M. The ball is fired into the bob and they stick together. If the initial height and the final height of the bob/ball combination are hi = 0.00m and hf = .15m respectively, what is the initial velocity (v lowercase)?

Answer 1

so \(KE=PE\rightarrow \dfrac{1}{2}mv^2=mgh\)