PHYS 1750: SELECTED TOPICS in PHYSICS
LECTURE 14. Uniform Rotational Motion.
| 8.1. | Angular motion | ||
| 1. | Definition of radian | ||
| a. | One radius on circumference subtends one radian of angle | ||
| b. | 360 deg = 2π radians | ||
| c. | Converts path displacement to angle displacement: Δθ = Δs / r | ||
| d. | Other radian-degree conversion formulae | ||
| 2. | Angular displacement: θ | ||
| 3. | Angular speed: ω = Δθ /Δt rad/s | ||
| 4. | Circumference speed: v = Δs /Δt = ωr m/s | ||
| 8.2. | Centripetal Acceleration | ||
| 1. | Conceptual | ||
| 2. | a=v2/r | ||
| 8.3. | Centripetal Forces | ||
| 1. | Ball on a string | ||
| 2. | Car on a curve | ||
| (8.4.) | Centrifugal forces | ||