(5)+Two-Dimensional+Motion+and+Gravitation

PAGE EDITORS: Jesse Seitz, Natalie Schott, Daniel Varela

Sometimes, objects move or fall in a direction that is neither vertical or horizontal. To calculate this "slanted" or "diagonal" motion, we must find the vertical and horizontal components of the angle, as if these components were the two shorter sides of a right triangle, and the "hypotanuse" is the object's actual direction. The equations for the X direction and the Y directions are completely independent of one another, but the same equations apply:
 * //2D Motion//**

V = Vo + at

change in position = Vot + (1/2)at2

change in position = (1/2)(Vo + V)t

v2 = vo2 + 2a(change in position)

(a=acceleration, t=time)

//**Gravitation**// All objects with mass have a natural tendency to attract other objects. This is called gravitation. The magnitude of the force of attraction varies depending on the mass of the objects and the distance between them, according to the following equation:

Force = **G X (m1 X m2) / (d^2)** m1=mass of first object m2=mass of second object d=distance between objects G=gravitational constant, which is **6.673 × 10^(-11) m2kg-2**


 * __Interesting Videos and Links__**

[] Just watch this video. Good times. Shows a crazy video of an "impossible" basketball shot. Is this possible? Look at the analysis from "Popular Science" columnist Adam Weiner who is also the author of the book: Don't Try This at Home! The Physics of Hollywood Movies. Make your own decision!