Section 1
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Average Acceleration
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Last updated
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Date created
Mar 1, 2020
Cards (71)
Section 1
(50 cards)
Average Acceleration
(v2 - v1)/time (m/s^2)
Frequency (f)
1/T (Hz)
Momentum (p)
mv (kgm/s)
Conservation of Momentum
m1v1 + m2v2 = m1v1' + m2v2' momentum is conserved (No lost in Energy)
Elastic Collision
Total momentum and total energy are conserved
Incline surface
FN - Fgy = 0 Ffr - Fgx = F
v = (v+v0)/(2a)
find average velocity if acceleration is constant
Impulse
= p2 - p1 = F*(t2 - t1)
Universal Gravitational Force (Fg)
Fg = [G(m1m2)]/(r^2) (N)
Potential Energy (PEg)
mgh (J)
Total Mechanical Energy if not conserved
KE1 + PE1 = KE2 + PE2 + Wnc (J)
Average Speed
distance traveled/time (m/s)
Completely Inelastic Collision
Two objects stick together after collision mv1 + mv2 = (m+M)*v
Total Energy of Simple Harmonic Motion
E = (1/2)mv^2 + (1/2)kx^2
Inelastic Collision
Total energy is not conserved KE1 + KE2 = KE1' + KE2' + energy (heat)
Period of Simple Harmonic Motion
T = (2pi)sqr(m/k) (s)
Direction of resultant velocity vector
tanθ = Vy/Vx
Elastic Potential Energy (PEe)
(1/2)kx^2 (J)
Gravity of an object near Earth's surface (Fg)
g = (G*mE)/(rE^2) (N)
Velocity Max in Simple Harmonic Motion
vmax = (2piA)/T (m/s)
Power (P)
work/time (Watts)
Kinetic Energy (KE)
(1/2)mv^2 (J)
Fs of Simple Pendulum
Fs = -mgsinθ
x = x0 +v0t + (1/2)at^2
find displacement if the acceleration is constant
Average Velocity
displacement/time (m)
Centripetal Force (Fa)
F = m*(v^2/r)
Magnitude of resultant velocity vector
v = Sqr(Vx^2 +Vy^2) (m/s)
v0x in projectile motion
remains the same (v0x = vx)
Newton's First Law
objects at rest stay at rest, objects in motion remain in motion
Frequency of Simple Harmonic Motion
(1/(2pi))sqr(k/m) (Hz)
Weight
Fg = mg (N)
Newton's Second Law
F = ma (N) acceleration directly proportional to net force acceleration inversely proportional to mass
v^2 = v0^2 +2a(x-x0)
find velocity if acceleration is constant and know the displacement
Components of a vector
Vy = V*sinθ Vx = V*cosθ
Net Work Done (Wnet)
KE2 -KE1 (J)
Restoring Force (Fs)
-k*x
Total Mechanical Energy if conserved
KE1 + PE1 = KE2 + PE2 (J)
Friction Force
Ffr = mu*FN (N)
v0y in projectile motion
= 0 m/s
Period of Simple Pendulum
T = (2pi)sqr(L/g)
v = v0 +at
find velocity if the acceleration is constant
Newton's Third Law
objects exert equal and opposite force on each other
1 Horsepower
746 W
Centripetal Acceleration
v^2/r (m/s^2)
Period (T)
1/f (s)
Work (W)
W = Fdcosθ (Joule)
Rate of Change of Momentum
F = (p2 - p1)/(t2-t1)
Center of Mass (CM)
x = (m1x1 + m2x2 + ...)/ (m1 + m2 + ...)
a in projectile motion
= g = -9.8 m/s^2
Velocity of Uniform Circular Motion (v)
v = (2pir)/T (m/s)
Section 2
(21 cards)