Two Identical Balls Are at Rest and Side by Side

question 54

Multiple Choice

Two identical balls are at rest and side by side at the top of a hill. You let one ball, A, start rolling down the hill. A little later you start the second ball, B, down the hill by giving it a shove. The second ball rolls down the hill along a line parallel to the path of the first ball and passes it. At the instant ball B passes ball A:

• A) it has the same position and the same velocity as A.
• B) it has the same position and the same acceleration as A.
• C) it has the same velocity and the same acceleration as A.
• D) it has the same displacement and the same velocity as A.
• E) it has the same position, displacement and velocity as A.

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Definitions:

REM Sleep

A stage of sleep characterized by rapid eye movements, during which dreaming often occurs and brain activity closely resembles that of being awake.

Violent Pretend Play

A form of play among children where they enact scenes involving aggressive actions and themes, often debated for its impact on child development.

Antisocial Behavior

Actions that harm or lack consideration for the well-being of others; often involves hostility and defiance toward authority.

Empathy

The ability to understand and share the feelings of another person from their perspective.