tached to a spring of spr ullet, whose mass is 7.87 en block. She measures tl compresses the spring to-

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(III) Agent Arlene devised the following method of
measuring the muzzle velocity of a rifle (Fig. 11–52). She
fires a bullet into a 4.148-kg wooden block resting on a
smooth surface, and attached to a spring of spring constant
k = 162.7 N/m. The bullet, whose mass is 7.870 g, remains
embedded in the wooden block. She measures the maximum
distance that the block compresses the spring to be 9.460 cm.
What is the speed v of the bullet?
M
m
9.460 cm
M+ m
FIGURE 11-52 Problem 22.
Transcribed Image Text:(III) Agent Arlene devised the following method of measuring the muzzle velocity of a rifle (Fig. 11–52). She fires a bullet into a 4.148-kg wooden block resting on a smooth surface, and attached to a spring of spring constant k = 162.7 N/m. The bullet, whose mass is 7.870 g, remains embedded in the wooden block. She measures the maximum distance that the block compresses the spring to be 9.460 cm. What is the speed v of the bullet? M m 9.460 cm M+ m FIGURE 11-52 Problem 22.
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