A Firecracker Breaks Up into Two Pieces, One Has a Mass

question 64

Multiple Choice

A firecracker breaks up into two pieces, one has a mass of 200 g and flies off along the x-axis with a speed of 82.0 m/s and the second has a mass of 300 g and flies off along the y-axis with a speed of 45.0 m/s. What is the total momentum of the two pieces?

• A) 361 kg∙m/s at 56.3° from the x-axis
• B) 93.5 kg∙m/s at 28.8° from the x-axis
• C) 21.2 kg∙m/s at 39.5° from the x-axis
• D) 361 kg∙m/s at 0.983° from the x-axis
• E) 21.2 kg∙m/s at 56.3° from the x-axis

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Definitions:

Objective Side

Refers to the aspect of an issue or situation that can be quantifiably measured or verifiably observed, as opposed to subjective perceptions.

Lev Vygotsky

A Soviet psychologist best known for his theories on cognitive development, particularly the social development theory of learning.

Innate Characteristics

Refers to traits or qualities that are present in an individual at birth, not acquired or learned.

Social Institutions

Established systems or structures within a society that govern the behavior and expectations of individuals, such as family, education, and government.