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:

Verified
Correct Answer:
Verified
Q18: Non-conservative forces convert mechanical energy into other
Q19: FIGURE 8-8 <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB6213/.jpg" alt="FIGURE 8-8
Q20: An object of mass 4 kg is
Q21: State the Conservation of Mechanical Energy
Q22: An object of mass 20.0 kg is
Q24: Describe the energy of a car driving
Q25: You throw a ball straight up. Compare
Q26: A person drops a brick from the
Q27: FIGURE 8-5 <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB6213/.jpg" alt="FIGURE 8-5
Q28: An acorn falls from a tree. Compare