Recently Active Mechanics Questions

BT vs FIITJEE (keeping following in mind) 1.in terms of no of students taking 2.whose percentile is almost equivalent to iit jee(imp) 3.whose que r closely related to iit pleaseeeeeeeeeee give ur votes am in need of it ...

An L shaped bar of mass m is pivoted about one end so that it can rotate freely in vertical plane. Calculate θ0 at equilibrium If it is slightly displaced,find frequency of oscillation *Image* ...

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A uniform rod is placed on 2 spinning wheels .The axes of wheel are separated by 2l . The coeff of friction b/w rod and wheel is μ.Find peiod of small oscillations of rod. *Image* ...

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*Image* in the figure shown , the minimum value of 'a' such that cylinder starts rising up the inclined plane : (a) g tanθ (b) g cosθ (c) g sinθ (d) g cotθ ...

plz explain the concept of capillary rise ...

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a piece of wax weighs 18.03 gm in air A piece of metal is found to weigh 17.03 gm in water It is tied to the wax and both together weigh 15.23 gm in water Then the specific gravity of wax is My problem is that if the metal's ...

If a satellite is moving in a circular orbit with an angular speed equal to that of the earth and it is directly above the north pole Find the time taken to come over the equatorial plane I have got the radius of the orbit an ...

*Image* Options are: (a) 9k/m (b) 8k/m (c) k/m (d) k/2m ...

A man pushes a compartment of a train in the direction in which the train is accelerating uniformly. Will the man do +ve ,-ve or no work ? ...

two vessels have the same base area but different shapes. The first vessel takes twice the volume of water than the second vessel required to fill up to a particular common height. In which vessel the force exerted by water o ...

A vehicle approaches a stationary observer from a distance. Which of the following graphs describes the frequency heard by a stationary observer? *Image* ...

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A solid cylinder of mass m is placed on a rough horizontal surface and a spring of stiffness k is connected to the point A at the same level as the centre O of the cylinder. OA and OB lie in a plane perpendicular to the axis ...

Centripetal acceleration of a particle of mass m moving in a circular of radius r is 4/r2 . What is the momentum of the particle? 4m/r 4m/√r 2m/√r 2m/r ans (c) ...

Find the minimum coaltitude which can directly receive a signal from a geostationary satellite Please give the method to solve it ...

It is a ques from one of the tests of the test column Please explain A man skids from the top of a slide to the bottom in 1 sec There is no friction Nothing else was known What is the height of the ramp Ans is This problem ca ...

the amont of energy transferred to a stationary body of mass m2 by a collision witha moving body of mass m1 can be increased by interposing another stationarybody of mass m between m1 and m2 such that m1 strikes m and m strik ...

How do u define internal forces?? *Image* and in this one *Image* ...

a piece of wax weigh 18.03 gm in air A piece of metal is found to weigh 17.03 gm in water It is tied to the wax and both together weigh 15.23 gm in water Then specific graviy of wax is Please give the solution ...

Unfortunately my answer is not matching........ *Image* ...

a ball is boucing down a flight of stairsThe coefficient of restitution is e The height of each step is d and the ball bounces one step at each bounce After each bouce the ball rebounds to a height h above the next lower step ...

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when a tap-water is turned on slowly, the water flow is smooth but it looses its smoothness wen the speed of the outflow is increased ... why?? [7] ...

A disc of mass 2M lying in vertical plane is free to rotate about a fixed horizontal axis passing from its centre. A particle of mass M is tied to a string of length 2R and another end of the string is attached to the disc as ...

*Image* PL ATTEMPT DA FIRST QUE..... ANS : "B" not a) ...

Guys, I'm all at sea with concepts on impulse. Pls explain what impulse is and then give formulas related to it. Pls guys. Thanx in advance [1] ...