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### Course: Mechanics (Essentials) - Class 11th > Unit 7

Lesson 2: Why holding a heavy weight above your head isn't doing any work!- Work and the work-energy principle
- What is kinetic energy?
- Using the kinetic energy equation
- Work example problems
- Calculating change in kinetic energy from a force
- Velocity and mass from force vs. position graphs
- Example: Calculating work and KE from graphs

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# Calculating change in kinetic energy from a force

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