As part of a forensics test, a 0.005 kg bullet is fired into a 0.5 kg stationary wooden block. The bullet becomes embedded in the block. The initial speed of the bullet is 370 m/s. 1)What is the initial velocity of the center of mass of the bullet-block system before the collision

It may seem strange that the selected velocity does not depend on either the mass or the charge of the particle. (for example, would the velocity of a neutral particle be selected by passage through this device? ) the explanation of this is that the mass and the charge control the resolution of the device--particles with the wrong velocity will be accelerated away from the straight line and will not pass through the exit slit. if the acceleration depends strongly on the velocity, then particles with just slightly wrong velocities will feel a substantial transverse acceleration and will not exit the selector. because the acc