An Object of Mass M Moving at Speed V Strikes

question 72

Multiple Choice

An object of mass m moving at speed v strikes and object of mass 2m which had been at rest. The first object bounces backward along its initial path at speed v. Is this collision elastic, and if not, what is the change in kinetic energy of the system?

• A) The collision is elastic.
• B) The kinetic energy decreases by mv².
• C) The kinetic energy decreases by 1/2 mv².
• D) The kinetic energy increases by mv².

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Definitions:

Group Unanimity

The condition in which all members of a group fully agree or concur on a decision or opinion, often researched in social psychology.

Asch

Relates to Solomon Asch, a psychologist known for his research on conformity and social pressure.

Milgram's Studies

A series of social psychology experiments conducted by Stanley Milgram, which primarily focused on the willingness of participants to obey an authority figure who instructed them to perform acts conflicting with their personal conscience.

Obedience

A form of compliance that occurs when people follow direct commands, usually from someone in a position of authority.