Physics 218: Mechanics Instructor: Dr. Tatiana Erukhimova Lecture 11.
Physics 218: Mechanics Instructor: Dr. Tatiana Erukhimova Lecture 40.
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Physics 218: Mechanics Instructor: Dr. Tatiana Erukhimova Lecture 40
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Transcript of Physics 218: Mechanics Instructor: Dr. Tatiana Erukhimova Lecture 40.
Physics 218: Mechanics Instructor: Dr. Tatiana Erukhimova
Lecture 40
Ch. 17 Statics
00 extextF
There is a ladder against a wall. There is no friction at the wall and the coefficient of friction at the floor is . At what angle can the ladder be placed so that it would slip if the angle were decreased infinitesimally?
The advantage of a lever
GIVE ME A PLACE TO STAND AND I WILL MOVE THE EARTH
The advantage of a pulley
What minimum force F is needed to lift the piano of mass M?
2
MgF
Simple harmonic oscillator
The forcesNo force
Force in –xdirection
Force in +xdirection
More Detail
Time
Some Terms
Amplitude: Max distance
Period: Time it takes to get back to here
A block with mass m is attached to the end of a spring, with spring constant k. The spring is stretched a distance L and let go at t=0
• Find the position of the mass at all times
• Where does the maximum speed occur?
• What is the maximum speed?
![Dr. Tatiana Erukhimova [year] Overview of Today’s Class Folders Syllabus and Course requirements Tricks to survive Mechanics Review and Coulomb’s Law.](https://static.fdocuments.in/doc/165x107/56649d6b5503460f94a4a20c/dr-tatiana-erukhimova-year-overview-of-todays-class-folders-syllabus.jpg)
