8.1. Potential Energy http://www.ck12.org
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- If you lift a 30 kg weight 0.5 meters, how much Potential energy has it gained?
- A spring has a spring constantkequal to 200 N/m. If it is stretched 0.4 m, what is its potential energy?
- A 12 kg box is resting on a table 1.5 m off the ground. It is then lifted up to 3.2 m off the ground. What is its
increase in potential energy?
Answers(using g = 10 m/s^2 )- 150 J
- 16 J
- 204 J