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An ice cube has been given a push and slides without friction on a level table. Which of the following statement is correct? 9. (a) It is in stable equilibrium (b) It is in unstable equilibrium (c) It is in neutral equilibriunm (d) It is not in equilibrium 10. As a simple pendulum swings back and forth, the forces acting on the suspended object are (a) gravity, (b) the tension in the supporting cord, and (c) air resistance. (i) Which of these forces, if any, does no work on the pendulum (i) Which of these forces does negative work on the pendulum at all times during its motion?

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