What is 8.01L?
Simpler to say what it is not:
Welcome to 8.01L
at MIT
Not less material than 8.01
Not easier treatment than 8.01
Not easier homework and/or exam problems than 8.01
Not less work than 8.01
For today, please take any seat.
Please pick up the
Last Lecture
Important Reminders
Springs
Pset # 5 due Friday at 10am.
Today
Circular Motion with Gravity
Next Mastering Physics deadline is next Monday.
Important Concepts
Dont forget centripetal acceleration.
Slightly modified version of the syl
mimics 6(- Ri {A Mi 2411
l
!
[a
0? cu PQCSCe
M l? = m5? (Memlons Q'Mb Lana)
l
l
l
l
l
, l
l
ilbgmicis 0% 0L victiA B0318
:4) 0< (Angular qtcekmxmhs
l
To r; o as
. NQVK cu (some is fwoaevj 40 oo rigid
3 bog} F'uvaeé alaogi' cum cutiS) *l g
Important Reminders
Last Lecture
Friction
Pset # 4 due here tomorrow at 10am.
Today
Springs
Important Concepts
The magnitude of the spring force depends linearly on
the distance the spring is stretched or compressed.
The direction of the force is
Last Lecture
Important Reminders
Circular Motion with Gravity
Pset # 5 due tomorrow at 10am.
Today
Conclusion of F=ma and start of Work/Energy
Next Mastering Physics deadline is next Monday.
Important Concepts
Dont forget centripetal acceleration.
Important Reminders
Last Lecture
Blast from the Past (Early Exam Review)
Start of Work/Energy
Pset # 6 due this Friday at 10am.
Today
Blast from the past (early exam review)
Next Mastering Physics deadline is next Monday.
More on Work/Energy
Exam
Sit anywhere at tables 18 but arrange yourselves
in groups of 3 for todays experiment.
Last Lecture
Basic idea behind components
Problem Solving Tool: Setting up
Make a careful drawing
Think carefully about all of the forces
!
Static equilibrium ! F = 0
Last Lecture
Make a careful drawing
Today
Think carefully about all of the forces
Force as a vector
Static equilibrium
Important Announcement
Problem Solving Tool: Setting up
Introduction
!
!F = 0
Addition and subtraction on vectors
Important Concepts
Important Reminders
Last Lecture
2-D kinematics - describing motion
Exam #1 is this Friday at 10am
Today
More 2-D examples
Material covered is through 2-D motion
Circular motion (yes, even more vectors)
Information and sample problems are posted on
t
Sit anywhere. Assigned seats will start this Friday.
REMINDER: Pset#1 due here tomorrow at start of class.
Last Lecture
Static equilibrium examples
!
!F = 0
Brief introduction of a few forces.
Today
Problem Solving Tool: Free-Body Checklist
Draw a cl
Important Reminders
Last Lecture
Kinematics - describing 1D motion
Relative velocity (yes, more vectors!)
Pset #2 due here tomorrow at 10 am
Today
More dimensions
Finish Mastering Physics #3 before next Monday at
10pm
More examples
Kinematics: Descript
Important Reminders
Sit in your assigned seats. Make sure you are
using the correct PRS unit to answer questions.
Last Lecture
Finish Mastering Physics # 2 tonight before 10pm
Free-body diagrams
Today
Mandatory tutoring sessions start this week
Kinem
Important Reminders
Last Lecture
More 2-D examples
Circular motion
Exam #1 is this Friday at 10am
Material covered is through 2-D motion
Today
Newtons Three Laws
Important Concepts
Remember how vectors change
Remember how vectors add
Separate externa
Important Reminders
Last Lecture
Properties of Friction - Direction
Applications of Newton s Three Laws
Today
Friction
Important Concepts
The magnitude of friction depends on the magnitude of
the Normal force
The magnitude of friction depends on wh
Important Reminders
Last Lecture
Newtons Three Laws
Pset # 3 due Friday at 10am.
Today
More discussion
Exam #1 average = 64.
Lots of examples
Final class grade will be on a curve.
Important Concepts
Think carefully about what object each force acts
Important Reminders
Last Lecture
More Work/Energy
Pset # 6 due tomorrow at 10am.
Start of Potential Energy
Next Mastering Physics deadline is next Monday.
Today
More on Work/Energy including Potential Energy
Exam #2 is next Friday at 10 am.
Impor
The mutual gravitational potential energy U = - Gm1m2/r between an 80-kg object and the earth is shown versus their separation r.
Dropping a brick onto a spring-mounted platform: using elastic and gravitational potential energies together.
Initial positio