A Bullet Shot Straight Up Returns to Its Starting Point

question 47

Multiple Choice

A bullet shot straight up returns to its starting point in 10 s. Ignoring air resistance, what was the initial speed of the bullet?

• A) 98 m/s
• B) 49 m/s
• C) 25 m/s
• D) 9.8 m/s

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Definitions:

Self-report

A method of gathering data where participants directly report their own experiences, attitudes, or behaviors, typically through questionnaires or interviews.

Behavioral

involves actions or reactions of individuals or systems in response to external or internal stimuli, often studied in psychology and behavioral sciences.

Psychological

Pertaining to the mind or mental processes and how they affect behavior, feelings, and thinking.

Electromyogram

An electromyogram (EMG) is a diagnostic procedure to assess the health of muscles and the nerve cells that control them (motor neurons) by recording the electrical activity produced by skeletal muscles.