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# Mr. Scanlan 2Dmotion

Projectile Motion Motion of an object with an initial horizontal component, that then experiences free fall.
Vector Physical quantity that has both magnitude and direction
Scalar Physical quantity with only a magnitude
Resultant A vector that represents the sum of two or more vectors
All motion is relative because of the observer's Frame of reference
Wind velocity is a (vector or scalar)? Vector
Speed is a (vector or scalar)? Scalar
Free fall velocity is a (vector or scalar)? Vector
A car accelerating is a (vector or scalar)? Vector
Mass of a car is a (vector or scalar)? Scalar
Driving east you throw a ball also east from the car, is its overall velocity faster or slower than the car? Faster
Driving east (10 mph)you throw a ball west from the car (5 mph), is its overall velocity faster or slower than the car? slower
Projectile motion has two vector components, one is vertical and the other is Horizontal
"True" projectile motion follows what path? Parabolic
"True" projectile motion only occurs in the absence of Air resistance
Is a volleyball served over a net a projectile? Yes
Is a ball dropped vertically from a building a projectile? No
Is a homerun in baseball a projectile? Yes
What is the path of a projectile in the absence of air resistance? A parabola
Are there any "true" projectiles in the earth's atmoshphere under normal daily conditions? No
Created by: bscanlan
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