Concept — Contact force perpendicular to a supporting surface.
Present in chapters
02·03
Linked atoms
40 linked atoms.
00 Grandezze fisiche, stime, equilibrio
- Worked example — The gorilla pulls a crate
- Worked example — Ladder against a smooth wall
- Worked example — Box with spring: equilibrium zone
- Types of forces
02 Forze e leggi di Newton
- Lift at the first instant
- Lift with scale and spring
- Static friction
- Spring scale in a lift
- Scale in vertical motion
- Circling a system
- Example — person on a platform
- Worked example — block on an inclined plane with 3 forces
- Worked example — two boxes with spring and pulley
- Worked example — two boxes in equilibrium
- Action-at-a-distance forces and contact forces
- Problem — Scale in a lift
- Problem — Coefficient of static friction
- Problem — The goods lift (scale graph)
03 Piano inclinato e moto circolare
- Acceleration on an inclined plane with friction
- Banking angle of the curve
- Car on a flat curve
- Coefficient of friction from the slipping threshold
- Flat curve, dry and wet
- Banked curves
- Worked example — Banked curve without friction
- Worked example — Inclined plane with kinetic friction
- Fantasy physics: zero gravity on a curve
- Fantasy physics: horizontal gravity
- The loop-the-loop
- The bucket of water in the loop-the-loop
- The accelerating matchbox
- Mass on a smooth plane
- Spring on an inclined plane
- Motorcyclist leaning into a curve
- Apparent weight on a carousel
- Smooth inclined plane
- Smooth plane at 30 degrees
- Choice of axes
- Maximum speed on a flat curve
- Minimum speed in the loop-the-loop