In an Elastic Collision,one Ball Has Initial Velocity V and Strikes

question 18

Multiple Choice

In an elastic collision,one ball has initial velocity v and strikes another,much less massive ball,that is initially at rest in a head-on collision.The velocity of the second ball after the collision is equal to:

• A) v
• B) 2v
• C) v/2
• D) -v
• E) something else

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Definitions:

Centration

A cognitive limitation in early childhood, where the focus is on one noticeable aspect of a situation, neglecting other important features.

Decentration

The cognitive ability to consider multiple aspects of a situation simultaneously, rather than being focused on a single viewpoint.

Objectivity

Refers to the practice of being impartial, fair, and unbiased in judgment or analysis.

Preoperational

A stage in Jean Piaget's theory of cognitive development (ages 2 to 7) where children start to use language and think symbolically but lack the ability for abstract thinking.