sph 201 introduction mechanics-ii recap: mechanics i = study of motion ... orbital (circular) motion...

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SPH 201

MECHANICS-II Instructor: Nyongesa, F. Ph.D

Lecture hrs (CBPS): Mon 09 - 10:00am Thur 12 - 2:00pm

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Nyongesa F. W.,

SPH 201: Mechanics II 2

INTRODUCTION

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INTRODUCTION

RECAP: Mechanics I = Study of motion of physical objects when subjected to external forces.

Described by Newton’s 3 laws of motion

(i) Law of Inertia

(ii) F = ma

(iii) Action = Reaction

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NB

Newton’s Laws are valid iff

in inertial reference frame (IRF) where a = const

If speed of object, v c.

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Limitations of Newtonian Mechanics

Breaks down & is superseded by Relativistic Mechanics

(i) As v c,

(ii) In accelerated RF (where a const)

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What is the speed of light as measured by A ?

A

http://animation.dinamobomb.net/

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Course Objectives

Study Newton’s laws of motion,

as applicable to Oscillatory motion

Newton’s law of gravitation, its applications & limitations

Introduce Relativistic Mechanics to describe motion where Newtonian Mechanics fails.

2

2

dt

xdF

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Course Overview Lecture 1: Oscillatory motion

SHO: Differential Eqn of Newton’s 2ND Law and its applications

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Damped Oscillators & Applications

fluid

FR

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Forced Oscillations: Effects & Applications of Resonance

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Lecture 2: Gravitation

Orbital (circular) Motion of Solar System

http://upload.wikimedia.org/wikipedia/commons/e/ee/MRI-Philips.JPG

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Reinassence Astronomy:

From Aristotle to Newtonian

Gravitation

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Lecture 3: Newton’s Law of Gravitation

Law of Gravitation

Earth’s Gravitation and applications

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Lecture 4: Gravitational potential & Satellites

Satellites & their applications

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Lecture 5: Relativistic Effects

Limitations of Newton’s law of gravity

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General Relativity: Basis, Postulates,

Predictions & applications of GR

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Lecture 6: Newtonian Relativity

Galilean (Newtonian) Relativity

Limitations of Newtonian Mechanics

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Lecture 7: Intro to Special Relativity

Postulates and predictions of SR

As v c, F ma

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E = mc2

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Prerequisites

SPH 101

Calculus I, II & ODE

Good English Grammar

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References

RESNICK R., HALLIDAY D., Physics II.

OHANIAN H. C., Principles of Physics.

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Course Ethics

1- Attend lecturers (2/3)

2- Do all problem sets

Study with someone else

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TUTORIALS

Submit soln to ANY ONE PROBLEM from each set – As due

Minimum = 5 PROBLEMS

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Feedback to:

[email protected]

sph 201 introduction mechanics-ii recap: mechanics i = study of motion ... orbital (circular) motion...

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