Question

You have been asked to design a "ballistic spring system" to measure the speed of bullets. A bullet of mass  m is fired into a block of mass M . The block, with the embedded bullet, then slides across a frictionless table and collides with a horizontal spring whose spring constant is k . The opposite end of the spring is anchored to a wall. The spring's maximum compression d  is measured.

B) What was the speed of a 1.70 g bullet if the block's mass is 1.00 kg and if the spring, with k= 34.0 N/m , was compressed by 11.0 cm ?

vB = 378 m/s , already solved, only do the part C

C) What percentage of the bullet's initial kinetic energy is not converted into spring potential energy?

Answer 1

į kx² 7 JX Žmu? = [l 34x/0-110² imi emner Dix la เ% 10 2x loo - 99.8% Answer