A 525-G Bullet Is Fired into a 360-G Block of Wood

question 86

Multiple Choice

A 5.25-g bullet is fired into a 360-g block of wood suspended as a ballistic pendulum.The combined mass swings up to a height of 8.75 cm.What was the magnitude of the momentum of the combined mass immediately after the collision?

• A)0.338 kg·m/s
• B)0.471 kg·m/s
• C)0.478 kg·m/s
• D)0.626 kg·m/s
• E)0.239 kg·m/s

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Definitions:

Marginal Utility

The extra pleasure or benefit gained by a consumer from consuming an additional unit of a product or service.

Marginal Utility

The additional satisfaction or utility gained from consuming an extra unit of a good or service.

Water-Diamond Paradox

A concept in economics that questions why diamonds are more expensive than water despite water being essential for survival and diamonds not.

Marginal Utility

The additional satisfaction or benefit received from consuming one more unit of a good or service.