Motion in Two Dimensions

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These questions cover chapter 3, which is pages 79-103.


a quantity that has botth magnitude and direction


a quantity that has magnitude, but no direction


the sum of two or more vectors

Pythagorean theorem

a² + b² = c²







x and y

the two components of a vector

to find the x component of velocity

use v*cos θ

to find the y component of velocity

use v*sin θ


a thrown or launched object that is given an initial horizontal velocity and is then in freefall

path of projectile


regardless of initial horizontal velocity

all projectiles fall at the same rate


type of projectile launch that initially has only horizontal velocity


type of projectile launch that has both horizontal and vertical initial velocity

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