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Newtonian mechanics equations
Newtonian mechanics equations
21
Physics
12th Grade
01/13/2008
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Term
1st kinematics equation
 Definition
vf = vo + at
Term
2nd kinmeatics equation
 Definition
x - xo = vot + (1/2)at^2
Term
3rd kinematics equation
 Definition
vf^2 = vo^2 + 2a(x - xo)
Term
4th kinematics equation
 Definition
x-xo = (1/2)(vo + vf)t
Term
Net Force
 Definition
Fnet = ma
Term
Force of friction
 Definition
Ff = mu x Fn
Term
Centripetal acceleration
 Definition
ac = v^2 / r
Term
Torque
 Definition
Torque = F x d
Term
Momentum
 Definition
p = mv
Term
Impulse
 Definition
I = delta p = F x delta t
Term
Kinetic energy
 Definition
KE = 1/2 mv^2
Term
Potential energy due to gravity (near Earth)
 Definition
PEg = mgh
Term
Work
 Definition
W = F x delta x = delta KE
Term
Power
 Definition
P = W/delta t = Fv
Term
Force of a spring [(-) sign means restoring force]
 Definition
F = -kx
Term
Potential energy of a spring
 Definition
PEx = (1/2)kx^2
Term
Period of a mass on a spring
 Definition
T = 2pi x square root of m/k
Term
Period a pendulum
 Definition
T = 2pi x square root of L/g
Term
Period in terms of frequency
 Definition
T = 1/f
Term
Gravitational force betweent two massive objects
 Definition
FG = (GM1M2)/r^2
Term
Gravitational potential energy between two massive objects (use it only when the object is far from a planet's surface)
 Definition
PEG = (GM1M2)/r
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