Agent Arlene devised the following method ofmeasuring the

Chapter 14, Problem 14.37

(choose chapter or problem)

Agent Arlene devised the following method ofmeasuring the muzzle velocity of a rifle (Fig. 14-33). Shefires a bullet into a 4.648-kg wooden block resting on asmooth surface, and attached to a spring of spring constantk = 142.7 N/m. The bullet, whose mass is 7.870 g, remainsembedded in the wooden block. She measures themaximum distance that the block compresses the spring tobe 9.460 cm. What is the speed v of the bullet?FIGURE 14-33 37.