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United StatesPhysics C: MechanicsQuick questions

Unit 3: Work, Energy, and Power

Quick questions on Potential energy - AP Physics C: Mechanics Unit 3

2short Q&A pairs drawn directly from our worked dot-point answer. For full context and worked exam questions, read the parent dot-point page.

What is q1?
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A conservative force gives U(x)=5x2U(x) = 5x^2 (SI units). Calculate the force at x=2.0x = 2.0 m. [2 points]
What is q2?
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State the gravitational potential energy of a satellite-Earth system and explain its sign (reference at infinity). [2 points]

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