Recently Active Mechanics Questions

replied2014-02-13 06:17:36
• 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 ...
replied2014-02-13 00:25:20
• 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 ...
replied2014-02-12 06:04:35
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replied2014-02-12 05:24:11
• 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 ...
replied2014-02-11 04:03:30
• 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„ ...
replied2014-02-09 01:46:21
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replied2014-02-05 07:49:27
• 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) 2Ï€ M/9K (B) 2Ï€ M/K (C) 4Ï€/3 M/K (D) Ï€ M/2K ...
replied2014-02-04 06:29:25
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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 ...
replied2014-02-03 09:53:25
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replied2014-01-31 04:49:14
• 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) ...
replied2014-01-31 04:26:25
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replied2014-01-31 01:38:01
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replied2014-01-30 04:49:48
• *Image* please post the full solution ...
replied2014-01-30 04:16:56
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replied2014-01-30 03:40:47
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replied2014-01-30 01:19:01
• *Image* The question above the graph wala question.... ...
replied2014-01-29 10:32:42
• 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 ...
replied2014-01-29 03:18:00
• 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. ...
replied2014-01-22 03:21:46
• Try this problem,it's really interesting. *Image* ...
replied2014-01-09 22:47:38
• Please gv the solution ...
replied2014-01-04 02:57:56
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replied2014-01-04 02:38:06
• 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 ...
replied2014-01-02 21:03:39
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replied2013-12-29 06:15:47
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replied2013-12-13 18:23:11
• 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 ...