Problem Solving And Edge Cases

Problem Solving

General

• Square and Quadratic Trigonometric Ratios

Unit 1

• Kinematics Solving Process

Pulley Solving Process

1. Which way is the system accelerating?
2. Free body diagrams
3. Vector equations. Isolate for acceleration
4. Equate each vector equation then system of equations to solve.

Edge Case Compendium

• Wind vector is dependent on destination, NOT where its coming from
• In Projectile Motion, the $v_{2y}$ is the same as the $v_{1y}$
• Negative acceleration in a pulley problem means the system is at rest.
• Convention-wise, top down view is the same as rear view

Banked Curve

• Theoretically, you can still make a turn on a banked curve even if there is no friction

Electricity

• Work is only positive when charge moved towards positive plate