A 20-G Bullet with an Initial Velocity of 3

question 67

Multiple Choice

A 20-g bullet with an initial velocity of 3.0  104 cm/s penetrates 6.0 cm into a stationary wall. The average force exerted on the bullet by the wall in bringing it to rest is approximately

• A) 1.5  104 N.
• B) 2.3 103 N.
• C) 9.8  10-3 N.
• D) 2.0  102 N.
• E) 4.7  10-2 N.

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