1. The problem statement, all variables and given/known data A 5g bullet is fired horizontally into a 0.50kg block of wood resting on a frictionless table. The block, which is attached to a horizontal spring, retains the bullet and moves forward, compressing the spring. The block-bullet system goes into SHM with a frequency of 9Hz and amplitude of 15cm. A) Determine the speed of the bullet 2. Relevant equations Fs=-kx a=-(k/m)x PEs= .5kx2 v=±[(k/m)(A2-x2)].5 T=2π(m/k).5 3. The attempt at a solution I wasn't sure how to even approach this but I think I need to determine the spring constant k using a form of T=2π(m/k).5. So: T=2π(m/k).5 T2=4π2(m/k) T2=4π2(m/k) k=(4π2m)/(T2) k=(4π2(.5kg+.005kg))/(92) k=.24613kg/s2 Then plug that into: v=±[(k/m)(A2-x2)].5 v=±[(.24613/.505)(.152-02)].5 v=.1047m/s I have NO IDEA if I am right or not. Anyone want to confirm or deny?