A Curling Stone Slides on Ice with a Speed of 2.0

question 2

Multiple Choice

A curling stone slides on ice with a speed of 2.0 m/s and collides inelastically with an identical, stationary curling stone. After the collision, the first stone is deflected by a counterclockwise angle of 28° from its original direction of travel, and the second stone moves in a direction that makes a 42° clockwise angle with the original direction of travel of the first stone. What fraction of the initial energy is lost in this collision?

• A) 0.12
• B) 0.24
• C) 0.36
• D) 0.48
• E) 0.64

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Definitions:

Physical Punishment

A form of discipline that involves the use of physical force with the intention of causing a person to experience pain but not injury, for purposes of correction or control.

Suppression

The conscious act of stopping oneself from thinking or feeling certain emotions or thoughts.

Modeling Aggression

The process where individuals learn and replicate aggressive behaviors by observing others, particularly influential models.

Variable-Interval

A reinforcement schedule in which a reward is given after a random duration of time has elapsed following a response.