A miniature spring-loaded, radio-controlled gun is mounted on an air puck. The gun's bullet has a mass of 7.00 g, and the gun and puck have a combined mass of 150 g. With the system initially at rest, the radio controlled trigger releases the bullet causing the puck and empty gun to move with a speed of 0.530 m/s. What is the bullet's speed?
a. 83.2 m/s
b. 75.7 m/s
c. 12.4 m/s
d. 11.4 m/s
e. 296 m/s
d
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