A 125-Kg Crate Slides Along a Horizontal Frictionless Surface at a a Constant

question 41

Multiple Choice

A 12.5-kg crate slides along a horizontal frictionless surface at a constant speed of 4.0 m/s. The crate then slides down a frictionless incline and across a second horizontal surface as shown in the figure.
-What is the kinetic energy of the crate as it slides on the upper surface?

• A)30 J
• B)80 J
• C)100 J
• D)200 J
• E)490 J

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Definitions:

Upward Comparison

Comparing oneself to others who are better off or more successful, which can influence self-esteem and motivation.

Temporal Comparison

The process of comparing one's past self to their current self to assess changes over time.

Collectivist Culture

is a societal approach that emphasizes the priority of group goals over individual goals and the importance of cohesion within social groups.

Collectivist Culture

A culture that emphasizes group solidarity, loyalty, and collective well-being over individual desires and achievements.