A bullet with a mass of 12 g moving horizontally strikes a fixed, stationary block of wood and penetrates a distance of 5.2 cm. The speed of the bullet just before the collision is 640 m/s. Assuming the block remains stationary, magnitude of the average force that the wood exerted on the bullet was
A) 4.7 x 104 N
B) 74 N
C) 4.7 x 106 N
D) 7.4 x 102 N
E) 4.7 x 105 N
Correct Answer:
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