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Vavg
velocity (average) (units: m/s)
d
displacement (units: m)
t
time (units: s)
Average Velocity
Vavg= d/t
vi
initial velocity (units: m/s)
a
acceleration (units: m/s2)
Displacement
d = vi t + 1/2 at^2
vf
final velocity (units: m/s)
Final Velocity (Time)
vf = vi +at
Final Velocity (Displacement)
vf^2 = vi^2 + 2ad
aavg
acceleration (average) (units: m/s2)
Average Acceleration
aavg = (vf -vi)/t
Fnet
net force (units: N)
m
mass (units: kg)
Net Force
Fnet = ma
Fw
weight (units: N)
g
acceleration due to gravity (g = 10 m/s2)
Weight
Fw = mg
FN
normal force (units: N)
θ
angle between horizontal and force
Normal Force
FN = FW cos (θ)
Ff
Friction force (units: N)
µ
friction coefficient
Friction Force
Ff = µFN