1/21/25, 2:42 AM
Kinetic of Particles
KINETIC OF PARTICLES
KINETICS
study of the relations existing between the forces
acting on a
body, the mass of the body, and the motion of the
body
Newton’s 1st Law
An object remains at rest or
moves in a straight line at
constant speed unless acted
upon by an external force
Newton’s 3rd Law
Mutual forces of action and
reaction between two particles
are equal, opposite, and
collinear.
Newton’s 2nd Law
The acceleration of an object is directly
proportional to the net force acting on it and
inversely proportional to its mass.
F=ma
FBD(Free-Body Diagram)
COORDINATES SYSTEMS
WORK AND ENERGY
NORMAL AND TANGENTIAL
Work is defined as the product of force and
displacement components acting in the same
direction.
Tangential acceleration.
Changes the speed of a
particle.
(at=dv/dt):
Normal acceleration.
Changes the direction of
motion.
(an=v^2/ρ)
KD(Kinetic Diagram)
RADIAL AND TRANVERSE
https://whimsical.com/kinetic-of-particles-Px28LhndYGysfeMb6v8Xmo
FORMULA
Work
U=F⋅ds
Potential Energy (Gravity)
Vg=W.y
Potential Energy Elastic
Ve=(1/2).ks^2
Kinetic Enery
T=(1/2)mv^2
IMPULSE AND MOMENTUM
(Momentum) The product of an object’s
mass and velocity.
L=mv
(Impulse) The effect of a force acting over a
period of time.
I=F.Δt
mv1+I = mv2
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