7/30/2019 P1 Kinematics and Mechanics Part 1 1

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Physics Day 1Kinematics and Mechanics Part 1

Units and Vectors

Mass (kg) Volume (m3) Length (m) Time (s)

Kinematics

Displacement = x (change in position) or d (Difference from Distance)

Velocitytxv

vavg =

2fi

vv (Difference from Speed)

Accelerationt

va

-acceleration due to gravity

-acceleration while moving along a curve

-signs () are important when displacement, velocity, and acceleration dont all point in the same direction

vtd (no acceleration)

tvd avg (constant acceleration)

2

2

1attvd i (constant acceleration) 22

1atd when starting from rest

advv if 222 (constant acceleration) used when no time information is available

Graphs

0

vt

xslope

t

x

0

at

vslope

area = dt

v

Projectile Motion

time to max height (tup)g

vt

yi

up

0g = gravity

max height (ymax) upyi

upyavg tv

tvy2

max

total time (ttotal) uptotal tt 2

horizontal displacement (x) totalxtvx

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