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 lower surface?
A) 290 J
B) 320 J
C) 370 J
D) 470 J
E) 570 J
Correct Answer:

Verified
Correct Answer:
Verified
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