[PHYS 1] - Midterm Exam Guide - Ultimate 11 pages long Study Guide!
Document Summary
Vector addition is commutative and are called the resultant vectors. Multiplying vectors: unit vectors have magnitude = 1. Use right hand rule to find the direction of the resultant vector from the cross product. The resultant vector is perpendicular to both of the original vectors. Unlike dot (scalar) product, vector product cannot be negative. If given and in their component form ( Will not be used in this course. Quantities: kinematics = the study of motion. Position vector: arrow that points from origin to a point in space. Displacement vector: arrow from initial position to final position. Changing direction = changing velocity (and thus acceleration) since is a vector quantity. If speed is constant, acceleration is not necessarily 0 (instantaneous) acceleration: same except shrink thee time interval to infinitesimal. Draw a picture, choose coordinate axis, and label initial/final. A water balloon is launched with an initial speed of at an angle of above the horizontal.
