Recently Active Mechanics Questions

A bead is initially at rest at the top of a fixed frictionless hoop of radius R, which lies in a vertical plane. The bead is given a tiny kick so that it slides down and around the hoop. At what points on the hoop does the be ...

*Image* i thnik this one has been discussed here if it is soo plzz post the link below else plzz give me a lil hint to do this ...

*Image* Ques 1) A,B, and C are the three particles of a medium whichn are equally seperated along the x-axis. When a sinusodial transverse wave of wavelength lambda propagates along x-axis, the following observations were mad ...

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QA particle performs harmonic oscillations along the x axis according to the law x= a cos wt. Assuming the probability P of the particle to fall within an interval from --a to +a to be equal to unity, find how the probabili ...

A particle moves under the influence of the potential V(x) = -Cx^{n}e^{-ax} . Find the frequency of small oscillations around the equilibrium point. ans not given please post workin' . NOTHING MORE mentioned in the question. ...

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A chain of length L and linear mass density \lambda ¸ is held such that it hangs vertically just above the pan of electronic balance. It is then released. What is the reading on the scale, as a function of the height of the ...

The earth bulges slightly at the equator, due to the centrifugal force in the earth's rotating frame. Show that the height of a point on the earth (relative to a spherical earth), is given by h=R\left(\frac{R\omega ^{2}}{6g} ...

A particle moves along the x axis according to the law x = a cos wt. Find the distance that the particle covers during the time interval from t = 0 to t??????????????? ...

TWO IDENTICAL TRAINS ARE MOVING ON RAILS ALONG THE EQUATOR ON THE EARTH IN OPPOSITE DIRECTIONS. WILL THEY EXERT SAME PRESSURE ON THE RAILS? (W.B. BOARD)(3) PLZ PROVIDE NECESSARY JUSTIFICATIONS TO UR ANSWERS......TOMORROW IS M ...

*Image* please solve only the angular acceleration bit! ...

*Image* A rod and a block are of same mass. Initially rod is in horizontal position. What will be acceleration of tip of the rod when system is released from the position. Elaborate your answer. ...

*Image* Ques 1) Find out the net downward thrust on the curved surface of a bucket full of water of height h and radii a and b. Ques 2) A small uniform tube is bent into a circle of radius r whose plane is vertical. Equal vol ...

**deleted** i know some of u may be angry with this act of mine...but i realised my mistake.....sorry again [2] ...

A rod of mass 'M' and length 'l' with end A hinged is lying on smooth horizontal table. A particle of mass 'm' with velocity 'u' strikes at right angle to the other end of the rod. Considering perfectly elastic collision find ...

The path of one projectile as seen from others is a straightline. IF UR ANS> IS TRUE OR FALSE please with sufficient explanation mention how ...

y1=A(cos0.5Ï€x-100Ï€t) y2=A(cos0.46Ï€x-92Ï€t) Q Speed of sound my doubt is that cna we calulate speed of sound dorectly using any of waves or should be write superimposed eqn first and then do claculation part ?? thouggh in t ...

open pipe is in resonance in 2nd harmonic with frequncy f1.Now one end is closed and frequncy is increasd to f2 such taht resoance is in nth harmonic.Find n and relation b/w f2 and f1 ...

Assuming 200 MeV of energy is released for fission of Uranium atom , find the number of fissions per second required to realease 10 kilowatt power. ...

In a simple fixed pulley system, two unequal masses m1 and m2 are connected by a light string passing over a light fixed pulley. the larger mass is stopped for a momment 2 secs after the system is set into motion. Find the ti ...

300g of water at 25C is aded to 100g ice at OC.Final temp of mix is ?? ...

*Image* please solve above two questions. ...

A V shaped tray is inclined at 37° is having coeff of friction with block (m=5kg) on its faces as 0.2 and 0.3.Find acc of block ...

i had found this quest very interesting....had posted it in http://www.targetiit.com/iit-jee-forum/posts/rotation-instantaneous-centre-of-rotation-12434.html . but the posts there were so conjusted that noone cared to solve s ...

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The power transferred through any cross section of a string in a standing wave is zero. True or False ...

Assume that a cloud of tiny water droplets is suspended (uniformly distributed and at rest) in air, and consider a rain-drop falling through them. Assuming that the rain-drop initially is of negligible size and that when it h ...

Please tell me how to do this type of problems. Consider the situation shown. A small disc of mass 1 kg is released from the top of a fixed wedge which is inclied at 60° to the horizontal. The coefficient of friction of surf ...