Multiple Choice
FIGURE 8-4
An object of mass 2 kg is held at the top of a triangular wedge as shown in Figure 8-4, and then released. The reference level for potential energy is at the base of the triangle. Neglect friction and use g = 10 m/s2.
-Refer to Figure 8-4. What is the gravitational potential energy of the object at the top of the wedge?
A) 30 J
B) 40 J
C) 100 J
D) 60 J
E) 80 J
Correct Answer:
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