Work & Energy
Work done by forces, kinetic and potential energy, springs, and the conservation law that solves the hardest motion problems.
Problems
- Three Steps of Force
- Pushing a Moving Block
- Starting from Rest
- Work from a Stepped Force Graph
- Work Under a Ramp-Shaped Force
- Braking with a Constant Force
- Final Speed from a Force Graph
- Pushing Against Friction
- Find the Spring Constant
- Tension in the String
- Stretch of the Lower Spring
- Stretching a Spring Further
- From 10 cm to 15 cm
- Energy Stored in Two Springs
- A Heavier Right-Hand Block
- Force at 10 cm
- Speed on Reaching the Spring
- A Softer Spring
- A Ball Dropped onto a Spring
- Fastest While Squashing