Q This assignment supports the following Unit Objectives: • (U109) State and apply the Law of Conservation of Energy (CLO2)(CLO4) • (U110) Calculate work and energy using appropriate units (Joules and Foot-pounds). (CLO2) • (U111) Discuss the components needed for work to occur (CLO4) • (U112) Define energy and work. (CLO2)(CLO4) • (U113) Discuss the difference between kinetic and potential energy. (CLO4) • (U114) Calculate kinetic and potential energies. (CLO2) • (U115) Define and calculate power based on work, energy and time. (CLO2)(CLO4) • (UDS) Develop a well thought out and correct response to various discussion questions (CLO2)(CLO4)(Goal 4) Do not start a new thread. Simply reply to my posting. Be sure to comment on at least two of your classmates' postings. Your replies must be more than a simple phrase like "I agree" or "I like your answers". Replies should reflect on why you agree or like what has been posted. Your replies must reflect a genuine effort to engage your fellow classmates regarding the comments provided or the problem that has been solved. Please post your responses here. 1. Throwing a shot put, you apply a force of 100 N while extending your arm 1 m. If the shot put flies 10 m, How much work did you do? Explain how you did your calculation. **Note that the numbers were chosen for simplicity, not realism. 2. You race a child that is exactly half your mass up identical ladders. If you took 5 s, and the child took 7 s, who did more work? Who had greater power? 3. Explain what happens to the energy of a ball initially at rest that falls down a hill and up another hill. You can ignore friction. 4. Name two subtypes of kinetic and potential energies each (e.g. chemical energy is potential - no you cannot use this as one of your examples)
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