Scalar quantities
quantities that can be expressed completely by single numbers with appropriate units
vector quantities
quantities that require magnitude AND direction for their complete description
*component
*each separate vector
*resultant
*single vector that produces the same result as the combined components
to add vectors use the
parallelogram method or head to tail method
graphic solution
if the vector diagram is drawn accurately to scale, the resultant can be measured directly with a ruler and a protractor
trigonometric solution
using trig ratios to calculate the magnitude and direction of the resultant
parabola
the path of a projectile is a curve called a
**
THE HORIZONTAL VELOCITY OF THE PROJECTILE WILL BE CONSIDERED CONSTANT
**
**
THE HORIZONTAL VELOCITY OF THE PROJECTILE WILL BE CONSIDERED CONSTANT
**
**
THE HORIZONTAL AND VERTICAL MOTIONS ARE COMPLETELY INDEPENDENT OF EACH OTHER
**
**
THE HORIZONTAL AND VERTICAL MOTIONS ARE COMPLETELY INDEPENDENT OF EACH OTHER
**
acceleration due to gravity
-9.81m/s2
*trajectory
*path of the projectile
projectile
objects that are thrown or launched into the air and are subject to gravity
*projectile motion
*freefall with an initial horizontal velocity
...
...