A 3-G Bullet Is Fired Horizontally into a 10-Kg Block

question 37

Multiple Choice

A 3-g bullet is fired horizontally into a 10-kg block of wood suspended by a rope from the ceiling.The block swings in an arc, rising 3 mm above its lowest position.The velocity of the bullet was:

• A)unknown since the heat generated in the collision was not given
• B)8.0 * 10² m/s
• C)24.0 m/s
• D)8.0 m/s
• E)2.4 *10⁴ m/s

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Definitions:

Anterograde Amnesia

A memory disorder that affects the retention of new information and events.

Retrograde Amnesia

Memory loss for a segment of the past but not for new events.

Head Injury

Physical trauma to the head, which may or may not affect the brain, leading to various degrees of impairment.

Retrograde Amnesia

A loss of memory-access to events that occurred, or information that was learned, before an injury or the onset of a disease.