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

question 6

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.
-While the crate slides along the upper surface, how much gravitational potential energy does it have compared to what it would have on the lower surface?

• A)80 J
• B)100 J
• C)240 J
• D)370 J
• E)490 J

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