Physics Department
PHYS 1P21/91
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Introduction
Kinematics
Dynamics
Work+Energy
Rotational Motion
Momentum
Oscillations+Waves
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1P91_Sternin
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Dynamics
Introduction
Kinematics: motion in one and two dimensions
Dynamics
Newton's Laws
Ex
:
father and daughter on skates
Ex
:
a skydiver
Ex
:
a problem with no numbers
Ex
:
Atwood machine
Gravity
Ex
: weight
vs.
mass
Contact forces
molecular
"spring mattress"
is the origin of normal force
molecular
"cold welds"
is the origin of friction
Ex
:
static
vs.
kinetic friction
Ex
:
accelerating on ice
(
f
s
opposes applied force;
f
k
opposes motion)
Ex
:
when friction goes to zero...
Ex
:
two stacked blocks sliding
Ex
: critical angle does not depend on mass
Ex
:
rappelling down a cliff
massless rope is a perfect transmitter of force:
straight
or
wrapped around an ideal pulley
Non-equilibrium applications of Newton's 2nd Law
Ex
: apparent weight in an elevator
Pas De Deux
, by Alan Lightman
Work and energy
Rotational motion
Linear and angular momentum
Oscillations and waves
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Updated: 26-Mar-2020 04:46