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

Siphon, i have a siphon question

i have a siphon question

What is the concept of time, Q. According to classical mechanics, what is t...

Q. According to classical mechanics, what is the concept of time ? As-per to classical mechanics (i) The time interval among two events has the same value for all observers

Working and principle of a nuclear reactor, Illustrate the working and prin...

Illustrate the working and principle of a nuclear reactor with the help of a labeled diagram?

Determine the magnitude of the pulse voltage, For the oscilloscope display ...

For the oscilloscope display of a pulse waveform shown in Figure, the 'time/cm' switch is on 50ms/cm and the 'volts/cm' switch is on 0.2V/cm. Verify   (a) The periodic time

Calculate the final speed of skater - speed and distance, A 50 kilogram ice...

A 50 kilogram ice skater glides across the ice in a straight line at 7 meters per second.  If she bends down and scoops up a 20 kilogram child standing on the ice, what will b

Working of functional units in ultrasonic pulse echo system, Explain about ...

Explain about the working of functional units in ultrasonic pulse echo system. The master timer by the electronic clock triggers the signal pulse generator at ordinary interval

Compute the thickness of the film, Q. A light of wavelength 6000 0 A falls ...

Q. A light of wavelength 6000 0 A falls normally on a thin air film, 6 dark fringes are seen between two points. Compute the thickness of the film. 2μt = nλ Thickness of t

Explain the change in kinetic energy of the crate, A crate with a mass of 2...

A crate with a mass of 210 kg is horizontally accelerated by a force of 95 N. The force is directed at an upward angle so that the vertical part of the force is 47.5 N and the

Equation for the equivalent capacitance, Derive mathematical equation for t...

Derive mathematical equation for the equivalent capacitance (Capacity) when capacitors are connected in series.

What is the electric potential, S uppose you have two parallel, metal plate...

S uppose you have two parallel, metal plates that have an electric field between them of strength 3.0 x 10 4 N/C, and are 0.050 m apart. Consider a point, P, located 0.030 m fr

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