Recently Active Mechanics Questions

*Image* A block of mass 'm' is attached to a spring of constant k= 4mg/L and natural length 10L. The system is released from rest, L above the ground. Q) Till the block reaches its lowest position for the first time, the time ...

*Image* take aA=4m/s2 vA=6m/s2 lenth of ladder as 16m ...

What is the difference between radial and angular acceleration ?? ...

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A bar of given specifications is being lowered into a vessel filled upto brim(with water) with constant velocity v.Calculate velocity of efflux of water from bigger container as a function of time. (Assume 1)Length of string ...

A massive sphere is secured on the end of a light rod placed vertically on a floor. The rod begins to fall without any initial velocity. Given the co-efficient of friction k> √5/2 . At what dist. from the bottom of the r ...

while i was having fun with physics at wikipedia'website a doubt came in mind ,as mentioned her::::::does the mass of ne body or particle vary while it is moving wid large velocity?????if YES wht r the conditions?????why this ...

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can anyone please tell me basically what is meant by the term "rest mass of a body " and how it differs from the " mass(general term used in physics) of the body" ?? ...

See when we taken into consideration banking in circular motion. We resolve the normal force along the x and y axis. We get Ncosθ = mg θ is the angle of banking. When we consider inclined plane we get N = mgcosθ. See both ...

there s this sum from irodov in 1.184 there is a chain witha length l-h inside a the tube or table and the res part is touching the floor kkk find the vel of the last bit of the chain as it falls down my doubt is not how to i ...

in u tube of area of cross sections of left and right limb as 2.5 cm2 and 5cm2 respectively is fille dwith water upto some height.100 cc of liquid of specific gravity 3/4 is poured into a)left limb b)right limb Find depressio ...

Q. The position vector of a particle is given by the relation \vec{r} = \vec{\alpha }(1-\gamma t+\beta t^{2}) , where \vec{\alpha } is a constant vector while \beta and \gamma are positive constants. Which of the following st ...

a solid cylinder of mass M is rolled horizontally on a rough surface with a force F acting on centre of mass (actually there is a diag but has just a cylinder horizontally rolling and F is acting towards right from centre.The ...

A u tube of areas of crossecetion fo left and rite limbs as 5cm^2 and 10 cm^2 are filled with liq of densiites ρ and 0.8ρ.100 cc of liquid of density 3ρ/4 is poured into a)rite limb b)left limb Find deprssion of liquid sur ...

This is a very old qsn. The qsn goes like this, that u have a mass m performing SHM, with a spring of spring const. k, and then when the mass reaches it's mean position, another mass m drops on it - so what will be the new am ...

Q1 Plane polarized light is passed through polaroid.on viewing through polaroid,it is given one complete rotation about direction of light.WHat do we observe now ?? Q2 what is coincidence logic ????draw the circuit in example ...

a standing wave existsi n a string of length 150cm fixed at both ends.THe displacement amplitude of a point at a distance 10cm from one of the ends is 10√3 mm.The distance b.w two nearest points within the same loop having ...

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A massless container containing some water is accelerating in the horizontal direction with accn a m/s2. The lid of the continer is hinged at 1 end, and is free at the other end. Find what minimum mass should be kept over the ...

din knw whether to put in mechanics or electricity and mag section *Image* ...

question if the ring like mass m1 comes down a distance h what is the ratio of v1/v2 my method i solved this problem mainly on intitution like i drew a erpendicular and the length comes out to be h cos@ now i want to know the ...

A thin horizontal uniform rod AB of mass m and length l can rotate freely about a vertical axis passing through its end A. At a certain moment the end B starts experiencing a constant force F which is always perpendicular to ...

An engineer works at a plant out of town. A car is sent for him from the plant everyday that arrives at the railway station at the same time as the train on which he comes. One day he arrives at the station one hour before an ...

A wire fixed at one end suffers extension when loaded at the other end. The linear strain is 4 x 10-3. The wire also suffers contraction in the radial direction. If the ration of radial strain to linear strain is 0.2. The per ...

Two persons A nad B, each carrying a source of sound of frequency 600 Hz are standing a few meters apart in a quiet field. The beat frequency heard when A moves towards B with a velocity of 3 ms-1 ( velocity if sound is 340 m ...

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kinetic energy of a system cannot be increased without applying any external force on the system. true or false????????? its given to be false????? how can this be????? ...