Practice: A delivery truck travels 8 miles in the +x-direction, 5 miles in the +y-direction, and 4 miles again in the +x-direction. What is the magnitude (in miles) of its final displacement from the origin?
| All Chapters | ||||
|---|---|---|---|---|
| Ch 01: Intro to Physics; Units | 1hr & 22mins | 0% complete | ||
| Ch 02: 1D Motion / Kinematics | 4hrs & 2mins | 0% complete | ||
| Ch 03: Vectors | 2hrs & 43mins | 0% complete | ||
| Ch 04: 2D Kinematics | 2hrs | 0% complete | ||
| Ch 05: Projectile Motion | 2hrs & 57mins | 0% complete | ||
| Ch 06: Intro to Forces (Dynamics) | 3hrs & 20mins | 0% complete | ||
| Ch 07: Friction, Inclines, Systems | 2hrs & 43mins | 0% complete | ||
| Ch 08: Centripetal Forces & Gravitation | 3hrs & 43mins | 0% complete | ||
| Ch 09: Work & Energy | 1hr & 58mins | 0% complete | ||
| Ch 10: Conservation of Energy | 2hrs & 54mins | 0% complete | ||
| Ch 11: Momentum & Impulse | 3hrs & 45mins | 0% complete | ||
| Ch 12: Rotational Kinematics | 3hrs & 3mins | 0% complete | ||
| Ch 13: Rotational Inertia & Energy | 7hrs & 4mins | 0% complete | ||
| Ch 14: Torque & Rotational Dynamics | 2hrs & 10mins | 0% complete | ||
| Ch 15: Rotational Equilibrium | 4hrs & 8mins | 0% complete | ||
| Ch 16: Angular Momentum | 3hrs & 6mins | 0% complete | ||
| Ch 17: Periodic Motion | 2hrs & 9mins | 0% complete | ||
| Ch 19: Waves & Sound | 3hrs & 25mins | 0% complete | ||
| Ch 20: Fluid Mechanics | 4hrs & 31mins | 0% complete | ||
| Ch 21: Heat and Temperature | 3hrs & 15mins | 0% complete | ||
| Ch 22: Kinetic Theory of Ideal Gases | 1hr & 44mins | 0% complete | ||
| Ch 23: The First Law of Thermodynamics | 1hr & 26mins | 0% complete | ||
| Ch 24: The Second Law of Thermodynamics | 3hrs & 9mins | 0% complete | ||
| Ch 25: Electric Force & Field; Gauss' Law | 3hrs & 34mins | 0% complete | ||
| Ch 26: Electric Potential | 1hr & 53mins | 0% complete | ||
| Ch 27: Capacitors & Dielectrics | 2hrs & 2mins | 0% complete | ||
| Ch 28: Resistors & DC Circuits | 3hrs & 7mins | 0% complete | ||
| Ch 29: Magnetic Fields and Forces | 2hrs & 27mins | 0% complete | ||
| Ch 30: Sources of Magnetic Field | 2hrs & 30mins | 0% complete | ||
| Ch 31: Induction and Inductance | 3hrs & 38mins | 0% complete | ||
| Ch 32: Alternating Current | 2hrs & 37mins | 0% complete | ||
| Ch 33: Electromagnetic Waves | 2hrs & 6mins | 0% complete | ||
| Ch 34: Geometric Optics | 2hrs & 51mins | 0% complete | ||
| Ch 35: Wave Optics | 1hr & 15mins | 0% complete | ||
| Ch 37: Special Relativity | 2hrs & 10mins | 0% complete | ||
| Ch 38: Particle-Wave Duality | Not available yet | |||
| Ch 39: Atomic Structure | Not available yet | |||
| Ch 40: Nuclear Physics | Not available yet | |||
| Ch 41: Quantum Mechanics | Not available yet | |||
| Sections | |||
|---|---|---|---|
| Review of Vectors vs. Scalars | 2 mins | 0 completed | Learn |
| Introduction to Vectors | 7 mins | 0 completed | Learn |
| Adding Vectors Graphically | 23 mins | 0 completed | Learn |
| Vector Composition & Decomposition | 12 mins | 0 completed | Learn |
| Adding Vectors by Components | 14 mins | 0 completed | Learn |
| Trig Review | 24 mins | 0 completed | Learn |
| Unit Vectors | 16 mins | 0 completed | Learn |
| Introduction to Dot Product (Scalar Product) | 12 mins | 0 completed | Learn |
| Calculating Dot Product Using Components | 12 mins | 0 completed | Learn |
| Intro to Cross Product (Vector Product) | 23 mins | 0 completed | Learn |
| Calculating Cross Product Using Components | 17 mins | 0 completed | Learn |
Concept #1: Adding Vectors Graphically
Example #1: Adding 3 Vectors
Concept #2: Subtracting Vectors Graphically
Practice: Find the magnitude of the Resultant Vector D=C-B-A.
Concept #3: Adding Multiples of Vectors
Progress
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