Recently Active Mechanics Questions

A block with a square base measuring a x a & height h is placed on an inclined plane of angle \Theta . The coefficient of friction is \mu The angle of the incline is gradually increased. The block will:: a) topple before slid ...

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A Uniform Rod of mass M = 1kg is tied with two light strings AB and CD as shown in fig. Initially the system is in equilibrium.The string CD is now snapped. Just after the string is snapped, tension( in N ) in string AB is... ...

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*Image* r-RADIUS OF INNER AND R-RADIUS OF OUTER SHELL ...

1) The motion of a particle varies with time as y=A(sinwt+coswt) Then the motion is an SHM whose amplitude is a)A b)2A c)A/2 2)A particle undergoes SHM with time period T. The time taken to complete 3/8 the of the oscillation ...

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A person of 75kg climbs staircase of 24 steps 15cm ea in 12s Find 1) The force required in N ...

A solid wire shaped as a truncated cone is stretched by two forces applied parallel to the length in opposite directns and normal to plane ends.If Y is Young's modulus of wire's material, elongation of the wire is *Image* *Im ...

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Following are equations of four waves : *Image* Which of the following statements is/are correct ? (A) On superposition of waves (i) and (iii), a travelling wave having amplitude a 2 will be formed (B) Superposition of waves ...

Two coherent point sources of light having wavelength λ are seperated by a distance d. A circle is drawn in space surrounding both the point sources as shown. The plane of circle contains both the point sources. The distance ...

*Image* A SPRING IS USED TO STOP A 60 KG PACKAGE WHICH IS SLIDING ON THE HORIZONTAL TABLE.THE SPRING HAS A STIFFNESS 20 KN/M.AND HELD BY CABLES SO THAT INITIALLY COMPRESSED BY 120mm.THE PACKAGE HAS A VELOCITY 2.5 M/SEC AND MA ...

*Image* A SQUARE PACKAGE OF SIDE a AND MASS m MOVES DOWN A CONVEYOR BELT A WITH A CONSTANT VELOCITY V1. AT THE END OF THE CONVEYOR BELT,THE CORNER OF THE PACKAGE STRIKES A RIGID SUPPORT AT B.ASSUMING THE IMPACT IS PERFECTLY E ...

*Image* 1) In the figure shown, the heavy cylinder ( radius R ) resting on a smooth surface separates two liquids of densities 2p and 3p. The height 'h' for the equilibrium of cylinder must be A) 3 R/2 B) R 3/2 C) R√2 D) No ...

Let there be a rod of length l(in a horizontal plane).End B is given a velocity 3m/s at an angle of 60 degrees in horizontal plane(+ve direction). What is he minimum velocity of end A? Ans.1.5 m/s Please provide an explanatio ...

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A mass m at the end of an ideal spring strecthes the spring to a length l when at rest. The mass is now set into motion so that it executes up and down vibrations while swinging back and forth as a single pendulum. It is obse ...

A large cylinder has an acoustic source at it's base....A small man is sitting at a corner of the cylinder and at time t=0 starts moving towards the source.... - he thereby detects a frequency f_0 ...Now the chamber is heated ...

1..a bucket of water is suspended from a spring balance .what is the increase in weight in the following cases;;;; (1)when piece of stone suspended from a string is immersed in the water without touching the bucket? (2)when p ...

*Image* A FLEXIBLE CHAIN OF MASS M HANGS BETWEEN TWO FIXED POINTS AT A AND B AT THE SAME LEVEL.THE INCLINATION OF THE CHAIN WITH THE HORIZONTAL AT TWO POINTS OF SUPPORT IS THETA.THE TENSION AT THE MID POINT OF THE CHAIN IS 1- ...

Two particles A & B are moving as shown in the figure. At this moment of time the angular speed of A w.r.t. B is *Image* a)( va+vb)/r b)( va-vb)/r c)( vbsin \Theta b-vasin \Theta a)/r in the anticlockwise direction d)( vbsin ...

prove that... If a ball of mass m collides with another stationary ball of mass M then the maximum angle of deviation of the ball of mass m is sin-1M/m ...from post (http://targetiit.com/iit_jee_forum/posts/balls_in_a_semi_ci ...

*Image* since the botom surface of cylinder is in liquid B then how can buoyant force can be aplied by liquid A on cylinder in upward direction as no bottom surface is in liquid A ? also it views that liquid A will apply forc ...

Please dont ban me for such idiotic doubts [2] Q ] match the columns *Image* ...

A particle 'A' of amss 2m collides elastically with another particle of mass 3m at rest, and as a result 'A' is turned by 90 degree. The fraction of the kinetic energy that 'A' looses as a result of the collision is a) zero b ...

A metal ring of mass m and radius R is placed on a smooth horizontal table and is set rotating about its own axis in such a way that each part of the ring moves with a speed v. Find the tension in the ring. ...