A Projectile Is Fired from the Edge of a Cliff

question 74

Multiple Choice

A projectile is fired from the edge of a cliff as shown in the figure.The initial velocity components are 940 m/s (horizontal) and 96 m/s (vertical) .The projectile reaches maximum height at point P and then falls and strikes the ground at point Q.How high is point P above point Q,assuming no air effects?

• A)470 m
• B)490 m
• C)45,000 m
• D)940 m
• E)90,000 m

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Definitions:

In-Group Favoritism Bias

The tendency for individuals to give preferential treatment and express more positive attitudes towards members of their own group as opposed to those of out-groups.

Ethnocentric Error

The mistaken belief that one's own cultural or ethnic group is superior to others, often leading to judging other cultures solely by the values and standards of one's own.

Ethnocentrism

The belief in the inherent superiority of one's own ethnic group or culture, often accompanied by a general disdain for other cultures.

Europeans

Refers to the people originating from or associated with the continent of Europe.