A 20-G Bullet Moving at 1 000 M/s Is Fired

question 32

Multiple Choice

A 20-g bullet moving at 1 000 m/s is fired through a one-kg block of wood emerging at a speed of 100 m/s.If the block had been originally at rest and is free to move,what is its resulting speed?

• A)9 m/s
• B)18 m/s
• C)90 m/s
• D)900 m/s

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Definitions:

Correlation

A statistical measurement that indicates the extent to which two or more variables fluctuate together.

Facts

A statement or assertion that can be proven to be true or is accepted as true based on evidence.

Theories

Systematic, organized frameworks of concepts and principles designed to explain and predict phenomena.

Hypotheses

Plural of hypothesis; propositions made as a basis for reasoning, without any assumption of its truth, intended for further investigation or experiment.