Recently Active Mechanics Questions

any logic behind the result given in the soln *Image* thanks ...

wud the answer be 6 hrs ? pls confirm *Image* ...

When a body is weighed on an ordinary balance we demand that the arm should should be horizontal if the weights on two pans are equal. Suppose the equal are put on two pans, the arm released. Is the torque of the two weights ...

A chain of length L,mass M kept vertical so it just touches ground.A height x of it from bottom falls down.Find the total force exerted by it on ground. ...

JUST CONFIRM THE ANSWER. I am getting 3h/2 from top. suppose in a container of height 2h ,there are two liquids of density rho(0) and 2 rho(0) ( each height h). we want to find the point on the container where a hole can be d ...

In the given arrangement pulley P1 and P2 are moving with constant speed vo downward and the centre of the pulley P lies on the principal axis of a convex mirror having radius of curvature R. Find the speed of image of pulley ...

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Ques 1) Figure (a) *Image* Three progressive waves A,B and C are shown in the figure. With respect to wave A, the wave C (a) lags behind the phase by \pi /2 and B leads by \pi /2 (b) leads in phase by \pi /2 and B lags behind ...

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*Image* detailed ans shall be appreciated.... ANS--B ...

A mechanism with 2 sliders is shown in the fig. Slider A at the instant shown has a speed of 3 m/sec and is accelerating at the rate of 15 m/s^2 towards rite at the given instant . If rod AB has a length of 3m and \theta is 6 ...

A Long pliablle carpet is laid on ground. One end of the carpet is bent back and pulled backwards with a constant velocity of 16 m/s. If mass/length of the carpet is 1 Kg/m , the minimum force required to pull the carpet is : ...

about what axis would a uniform cube have its minimum and max moment of inertia . explain pls the approach of solving it. ...

a) x = 2.0 cos (50t + tan–1 0.75) = 2.0 cos (50t + 0.643) v = dt dx = – 100 sin (50t + 0.643) the square is pie.....? can u explain hw we get this? ...

a body can hav kinetic energy without having linear momentum . how is it possible......... explain pls ...

PLease see page 98 vol1 friction chapter,28 problem. I am not getting the answer. *Image* Find acceleration of M. N1 is normal force between the two blocks and N2 is that between the ground and M. Let M move with acceleration ...

Q. A rubber cord catapult has cross-sectional area 25mm2 and initial length of rubber cord is 10cm. It is stretched to 5cm. and then released to project a missile of mass 5gm. Taking Yrubber = 5 x 108 N/m2, find the velocity ...

it was found the the winding radius of a tape on a cassette was reduced by half in time t1 = 20. in what time will the winding radius will be reduced by half again? ...

show that if a billiard ball is heated inside an ellipse from focus it will always pass along the major axis.(after a finite time) ...

1.a solid sphere,a hollow sphere and a disc all havin same mass and radius are placed at top of an incline and released such that friction coefficient is same for all and is not enough to allow pure rolling.least time to reac ...

QUES.1 A metal sphere of radius a and mass M is surrounded by a thin uniform spherical shell of eual mass and radius 4a . The cente of the shell falls on the surface of the inner sphere .find the gravitational field at the po ...

You attach a weight to a vertical fixed spring and release it from rest. When the weight reaches its lowest point, its velocity is zero. So a=dv/dt = 0 But if you apply equation of S.H.M. i.e. a = -Ñ¡2x, x (displacement from ...

this is an easy but nice question... Suppose a car starts from a point A and reaches a point B after time t .The car has definite velocity (which may be variable or constant but it is defined) all through the journey. Let V b ...

*Image* *Image* A cylindrical vessel of area of cross section A and filled with liquid to a height of h1 has a capillary tube of length l and radius r protruding horizontally at its bottom.If the viscosity of liquid is \eta a ...

1.217. Find the proper potential energy of gravitational interaction of matter forming a 1)thin uniform spherical layer of mass m and radius R 2)uniform sphere of mass m and radius R (i have done the 2nd part,need help in the ...

A ball is dropped on the ground from height of 1m.The coefficient of restitiution is 0.6.The height to which the ball wil rebound. a) 0.6 m b) 0.4 m c) 0.36m d) 0.16 m ...

Hello, I am very curious to know why 'torque' is only the cross product of force and perpendicular distance.I just want to know the mathematical derivation for this equation.In physics,nothing can be just defined;there has to ...

How to find the wedge constraint using the method of "net Work done by internal forces (in a system) is zero. " http://targetiit.com/iit-jee-forum/posts/constraint-equation-471.html For example, in the below figure..suppose t ...

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