A 15-G Bullet Is Shot Vertically into an 2-Kg Block

question 30

Multiple Choice

A 15-g bullet is shot vertically into an 2-kg block. The block lifts upward 8.0 mm (see the figure) . The bullet penetrates the block and comes to rest in it in a time interval of 0.0010 s. Assume the force on the bullet is constant during penetration and that air resistance is negligible. The initial kinetic energy of the bullet is closest to

• A) 21 J.
• B) 14 J.
• C) 10 J.
• D) 0.0012 J.
• E) 0.16 J.

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Definitions:

Indifference Curve

A graphical representation showing different combinations of two goods that give a consumer equal satisfaction and utility.

Marginal Utility

The additional satisfaction or usefulness gained from consuming one more unit of a good or service.

Positive Slopes

Characteristics of a line or curve on a graph indicating that values of the variable on the y-axis increase as the values of the variable on the x-axis increase.

Equilibrium

The state in which market supply and demand balance each other, resulting in stable prices.