Given the Following Information Regarding a Typical Cartridge of 9mm

question 15

Multiple Choice

Given the following information regarding a typical cartridge of 9mm ammunition:
$$\begin{array} { | l | l | l | } \hline 1 \text { gram: } & 15.43 & \text { grains } \\\hline 1 \mathrm { oz } & 28.35 & \mathrm {~g} \\\hline \text { Propellant energy: } & 4545 & \mathrm {~J} / \mathrm { g } \\\hline \text { Mass of propellant } & 5.7 & \text { grains } \\\hline \text { Efficiency } & 59 \% & \\\hline \text { Bullet weight } & 115 & \text { grains } \\\hline\end{array}$$
Calculate the muzzle velocity in m/s. 1J = 1 (kg m²) /s²

• A) 516
• B) 628
• C) 722
• D) 910
• E) none of the above

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