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

question 22

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 speed of the crate when it arrives at the lower surface?

• A)7.7 m/s
• B)8.6 m/s
• C)59 m/s
• D)75 m/s
• E)98 m/s

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Definitions:

Latent Memory Traces

Subconscious remnants of experiences that have been encoded into long-term memory but are not currently active or retrievable.

Ancestral Past

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A concept in psychoanalytic theory introduced by Sigmund Freud which posits a child's unconscious desire for the opposite-sex parent and jealousy toward the same-sex parent.

Mother

A female parent or guardian who provides care, protection, and guidance to her offspring.