Recently Active Mechanics Questions

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A smooth sphere of radius R is made to translate in a straight line with constant acceleration a=g. A particle kept on the top of the sphere is released from there at zero velocity with respect to the sphere. The speed of the ...

a chain of mass m=0.8 kg and length l=1.5 m rests on a rough table so that one of its ends hangs over the edge.The chain starts sliding off the table all by itself provided the hanging part is n=1/3 of chain's length.What wil ...

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A particle of mass m moves in one-dimensional Potential energy U(x)=-ax2+bx4.a&b are +ve constants.The angular frequency of small oscillations about the minima of the potential energy is (A)Ï€ a/2b (B)2 a/m (c) 2a/m (D) a/2m ...

To both, A and B, move away from a buoy and ancurd at the middle of a river, and the boat B across the river. Having moved off an equal distance from the buoy the boats returned . Find the ratio of times of motion of boats Ï„ ...

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A block of mass M is attached with the springs as shown. If the block is slightly displaced, the time period of SHM for the block shown in the figure will be? *Image* (A) 2π M/9K (B) 2π M/K (C) 4π/3 M/K (D) π M/2K ...

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A motorboat going downstream overcame a raft At a point A ; Ï„=60min later it turned back and after sometime passed the raft at a distance l=6.0km from the point A . Find the flow velocity assuming the duty of the engine to b ...

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A body of mass 200 grams is in equilibrium At x equal to zero under the influence of a force f(x) =( -100x+10x2 )N. ( A)If is the body is displaced a small distance from equillibrium what is the period of its association? (B) ...

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*Image* The question above the graph wala question.... ...

A particle performs shm in straight line. Starting from rest in the 1st second it covers p distance and in 2nd second it cover q from p distance. Find amplitude of oscillation in terms p and q only ...

A spherical ball of mass m and radius r rolls without slipping on a rough concave surface of large radius R. It makes small oscillations about the lowest point. Find the time period. ...

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Happy New year everyone. So, I recently watched Dhoom 3 and came across this scene where Amir Khan, and Amir Khan are on a launch, and are facing Abhishek Bachchan and Uday Chopra. Then they decide to fuse or join their bikes ...

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A small box is placed on a conveyor belt that moves with constant speed v0=1m/s . Due to a technical malfunction, the belts starts moving left and right at constant speed (see the graph below). The coefficient of kinetic fric ...

A disc of radius R and mass M is projected on to a horizontal floor with a backward spin such that it's speed of centre of mass is v and angular velocity is ω .What must be the minimum value of ω so that the disc eventually ...

Solid Cylinder, rolls over horizontal surface Find the max value of v which still permits it to roll over incline plane without a jump, sliding is absent. *Image* ...

a uniform rod of mass m and length l rotates in a horizontal plane with an angular velocity ω about a vertical axis passing through one end .The tension in the rod at a distance x from the axis is? ...