Recently Active Mechanics Questions

Q 17 solve kario!!! *Image* ...

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What is the time period of a simple pendulum of infinite length ? pls show in details and explanation . ...

1) Acubical block of wax is uniformly heated from all sides. Melting will start from a)top b)bottom c)sides d)uniformly ...

Q1. A point moves in a plane so that its angular velocity about two fixed points is the same in the plane. The point describes: (a) circle (b) straight line (c) ellipse (d) parabola Q2. St 1: If the law of gravitation becomes ...

two air bubbles in water a]attract each other b]repel each other c]do not exert any force on each other d]may attract or may repel depending on the distance between them please try to explain solution fully please [176] ...

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*Image* solve Question no. 3... The spring attached to d vertex B has spring constant = K1 and the other one has K2 ... also, in all d four options, K2 follows K1... ...

two equal masses are situated at separation r0. One of them is imparted initial velocity v0 = (Gm/r0)^1/2 Treating motion only under mutual graviation, find the ration of max and min separation between the masses *Image* ...

a spaceship orbits the earth at a constant speed along a circular path. when an astronaut inside the spaceship releases an object, it does not move away from him. which of the following is the most accurate reason for this? a ...

A uniform rod of length L,cross-section area A and Young's modulus Y is acted upon by the forces as shown in the figure. *Image* The elongation in the rod is λ (FL/AY). The value of λ is : (A) 4 (B) 3 (C) 11/4 (D) 4/3 ...

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Fing the minimum no. of identical wooden plates each of length L, mass M that have to be arranged as shown in the figure, so that the topmost plate is completely outside the table (ie, the leftmost point of the plate is outsi ...

a simple pendulum havin a bob of mass m is suspended 4rm d ceilin of d car used in a stunt film shootin.the car moves up along an inclined cliff at a speed v and lands at sum distance.let R be the max height of d car 4rm d to ...

two balls were dropped from a very high cliff one after the other with some time lag between them The separation between them remains constant during the course of motion please tell whether this statement is correct or not? ...

The mean density of sea water is ∂ and bulk modulus is B.The change in density of sea water in going from surface of water to depth h is ...

A paricle moves in the xy plane accordingly with the velocity v=(a)i+(bt)j. At the instant t=a 3 /b the magnitude of the tangential, normal and the toatal acceleration are-___________, _________ and ________. ...

*Image* A man acting with a force F upon a strecthed spring stands in a railway carriage of a uniformly moving train .the train covered a distance L. What work will be done by the man in a coordinate system related to the ear ...

Make the sketch for acceleration and velocity ..... This is a sort of self evaluation question right now... mainly becaue we dont have an image upload facility yet... we will have it soon though.. promise :) *Image* I will po ...

Explain what will happen in order of occurance A boat has 2 passengers. On the left is a heavy man with weight 100kg. On the right is a light person with weight 10kg. They interchange their position by walking on the boat. Ex ...

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1)a glass full of water has a bottom area 20cm2 and top area 20cm2 ht 20 cm ...volume half a litre considering the equilibrium of water find the resultant force exerted by the sides of the glass on the water... ...all standar ...

hey guys! there is a very popular problem... but the thing is dat i for go the trick ... two masses m1 and m2.. and a massless pulley... as usual.. theya re moving wid some acceleration.. the thing is : let m1 be stopped for ...

A block of mass 2m is hanging at the lower end of a rope of mass m and length l . THe other end is fixed to the ceiling .A pulse of wavelength λ0 is produced at the lower end of the rope,what is the wavelength of the pulse w ...

*Image* two blocks are kept on a smooth horizontal table.... they are interconnected by an ideal spring of spring constant k..... A force is aplied as shown....... findthe max. compression of the spring. Ans: m1F/(2k(m1+m2)) ...

A semicircular thin coil of mass M kg and radius R m is hindged at one end A and lies in a vertical plane. At time t=0 the coil was ignited to burn its mass at constant rate K kg/s. Assuming total conversion of mass into ener ...

a force F\vec{} = -k(yi\dot{} + xj\dot{}) (where K is a positive constant) acts on a particle moving in the xy plane starting from the origin the particle is taken along the positive x axis to the point (a,0) and then paralle ...

a force F\vec{} = -k(yi\dot{} + xj\dot{}) (where K is a positive constant acts on a particle moving in the xy plane starting from the origin the particle is taken along the positive x axis to the point (a,0) and then parallel ...

The tensile stress in a steel wire is 2*10^8 N/m^2 .What is speed of transverse wave in the wire.Density of steel is 7.8g/cm^3 ...

N identical balls lie equally spaced in a semicircle on a frictionless horizontal table, as shown. The total mass of these balls is M. Another ball of mass m approaches the semicircle from the left, with the proper initial co ...