PH-UY 1013 Study Guide - Midterm Guide: Terminal Velocity
Kepler’s Laws
major axis
minor axis
perihelion
aphelion
T2
r3=k
T2
r3=4π2
GMsun
Constants
rearth =
Mearth =. ×24
rsun =
Msun =. ×30
G=. ×−11 2/2
Rigid Body Motion
rigid body
Linear vs. Angular
s=rθ
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Document Summary
They move faster when they are closer to the sun due to the stronger gravitational force: period and average distance. T 2 r3 = k for any planet in a solar system. Mearth = 5. 972 1024 kg rsun = 696 300 km. Rigid body motion rigid body an object such that the distance between any 2 points on it is preserved when it is rotated. Acceleration a x = r v = r a = r . F = i + t f = 2. 2 mr2 hollow cylinder mr2 solid sphere 2 hollow sphere 2. If a rigid body of mass m is rotated about a point a distance d from its center of mass, then. If a lat rigid body is being rotated about an axis z perpendicular to the plane in which it lies, then. = r f = rf sin = r f. W from ri to rf = rf ri.
