Axis perpendicular to the rod, Physics

Assignment Help:

A non uniform rod AB has a mass M and length 2L the mas per unit length of the rod is mx at a point of the rod distant x from A.find the moment of inertia of this rod about an axis perpendicular to the rod (!)through A (2)through the mid point of AB

Ans) consider a strip of the rod ''dx'' at a length ''x'' from A.mass of the small strip is mx*dx.moment of inertia of the small strip about A IS m*x*dx*x*x.on integrating we get moment of inetia about A as 4*m*L*L*L*L.

ABOUT MID POINT OF AB.consider a strip of length ''dx'' at a distance of x from mid point P.mass of it is m*(L-x)*dx.moment of inertia of half of the rod about P is m*(L-x)*dx*x*x.on integration we get moment of inertia of half of the rod.similarly do for the other half.adding them we get the answer.


Related Discussions:- Axis perpendicular to the rod

Mathematical expression for dispersive power, Arrive at the mathematical ex...

Arrive at the mathematical expression for dispersive power of the material of a prism in terms of angle of deviation. Determine the critical angle for the material of refractiv

Explain zener diode and its applications, ZENER DIODE: It is a two termi...

ZENER DIODE: It is a two terminal semiconductor junction device with a very sharp voltage breakdown at reverse bias applied. The device is utilized to give a voltage reference.

Thermo and Statistical Dynamics, I need help with a problem. Must find th...

I need help with a problem. Must find the entropy S(E) in the microcanonical ensemble for this system for this system in terms of E and L(and the constants c,k,h(naught) and the

Linear-shm, A particle executes linear some with an amplitude if 2 cm.when ...

A particle executes linear some with an amplitude if 2 cm.when the particle is at 1cm from the mean position the magnitude of its velocity is equal to that of its acceleration.Then

Estimate the kinetic energy of a proton, A cyclotron with dee radius 45.9 ...

A cyclotron with dee radius 45.9 cm is operated at an oscillator frequency of 12.9 MHz to accelerate protons. (a) What magnitude B of magnetic field is required to achieve resonanc

Determine grating element in specturm, A beam of light of wavelength λ = ...

A beam of light of wavelength λ = 5000Å falling normally on a plane diffraction grating. The 1 st order spectrum is derived in a direction making an angle θ 1 with the norma

# ELECTRONICS, #WHAT IS THE PRINCIPLE OF REGULATOR?

#WHAT IS THE PRINCIPLE OF REGULATOR?

Determine the exaggeration produced by the two lens system, Q. (a) Determin...

Q. (a) Determine the'effective  focal length' of the grouping of the two lenses in Exercise 9.10 if they are placed 8.0 cm a part with their principal axes  coincident. Performed t

What is intrinsic semiconductor, A pure semiconductor is known as intrinsic...

A pure semiconductor is known as intrinsic semiconductor. It has thermally formed current carriers (i)  They have four electrons in the outer part of orbit of atom and atoms are

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd