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A block of mass 'm' is released from rest at point A. The compression in spring, when the speed of block is maximum
The correct answer is:
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A block of mass m sliding down an incline at constant speed is initially at a height h above the ground, as shown in the figure above. The coefficient of kinetic If the mass continues to slidemfriction between the mass and the incline is down the incline at a constant speed, how much energy is dissipated by friction by the time the mass reaches the bottom of the incline?
A block of mass m sliding down an incline at constant speed is initially at a height h above the ground, as shown in the figure above. The coefficient of kinetic If the mass continues to slidemfriction between the mass and the incline is down the incline at a constant speed, how much energy is dissipated by friction by the time the mass reaches the bottom of the incline?
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Two particles starts moving on the same circle of radius 2 m, from the same point P at t = 0, with constant tangential accelerations = 2 m/s2 and 6 m/s2 , clockwise and anticlockwise, respectively. The point where they meet for the first time is Q. The smaller angle subtended by PQ at center of circle is
Two particles starts moving on the same circle of radius 2 m, from the same point P at t = 0, with constant tangential accelerations = 2 m/s2 and 6 m/s2 , clockwise and anticlockwise, respectively. The point where they meet for the first time is Q. The smaller angle subtended by PQ at center of circle is
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A block of mass m is sitting on a rotating frictionless wedge. The 
around the axis shown in figure. rotates with constant angular velocity
A block of mass m is sitting on a rotating frictionless wedge. The around the axis shown in figure. rotates with constant angular velocity
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An object moves counter-clockwise along the circular path shown below. As it moves along the path its acceleration vector continuously points towards point S. The object
An object moves counter-clockwise along the circular path shown below. As it moves along the path its acceleration vector continuously points towards point S. The object
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For the two blocks initially at rest under constant ext. forces of mass1 kg and 2kg shown, 
.Which of the following is correct
For the two blocks initially at rest under constant ext. forces of mass1 kg and 2kg shown, .Which of the following is correct
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The rear side of a truck is open and a box of mass 20kg is placed on the truck 4 meters away from the m = 0.15 and g = 10m/sec2open end . The truck starts from rest with an acceleration of 2m/sec2 on a straight road. The box will fall off the truck when truck is at a distance from the starting point equal to:
The rear side of a truck is open and a box of mass 20kg is placed on the truck 4 meters away from the m = 0.15 and g = 10m/sec2open end . The truck starts from rest with an acceleration of 2m/sec2 on a straight road. The box will fall off the truck when truck is at a distance from the starting point equal to:
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Two containers of sand S and H are arranged like the blocks figure I. The containers alone have negligible mass; the sand in them has a total mass Mtot; the sand in the hanging container H has mass m. You are to measure the magnitude a of the acceleration of the system in a series of experiments where m varies from experiment to experiment but M tot does not; that is, you will shift sand between the containers before each trial. 
is taken on the horizontal axis for all the plots.
The curve which gives tension in the connecting string (taken on y-axis) as a function of ratio 
æ M tot m is:
Two containers of sand S and H are arranged like the blocks figure I. The containers alone have negligible mass; the sand in them has a total mass Mtot; the sand in the hanging container H has mass m. You are to measure the magnitude a of the acceleration of the system in a series of experiments where m varies from experiment to experiment but M tot does not; that is, you will shift sand between the containers before each trial. is taken on the horizontal axis for all the plots.
The curve which gives tension in the connecting string (taken on y-axis) as a function of ratio æ M tot m is:
Physics-General
Physics-
Two containers of sand S and H are arranged like the blocks figure I. The containers alone have negligible mass; the sand in them has a total mass M tot; the sand in the hanging container H has mass m. You are to measure the magnitude a of the acceleration of the system in a series of experiments where m varies from experiment to experiment but M tot does not; that is, you will shift sand between the containers before each trial. is taken on the horizontal axis for all the plots.
The plot in figure II which gives the acceleration magnitude of the containers (taken on y-axis) as a ÷function of ratio is:
Two containers of sand S and H are arranged like the blocks figure I. The containers alone have negligible mass; the sand in them has a total mass M tot; the sand in the hanging container H has mass m. You are to measure the magnitude a of the acceleration of the system in a series of experiments where m varies from experiment to experiment but M tot does not; that is, you will shift sand between the containers before each trial. is taken on the horizontal axis for all the plots.
The plot in figure II which gives the acceleration magnitude of the containers (taken on y-axis) as a ÷function of ratio is:
Physics-General
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In figure shown on the right, the mass of the trolley is 100 kg, and it can move without friction on the horizontal floor. Its length is 12m. The mass of the girl is 50 kg. Friction exists between the shoes of the girl and the trolley’s upper surface, 
= 1/3. The girl can run with a maximum speed = 9 m/s on the surface of with the trolley, with respect to the surface. At t = 0 the girl starts running from rest to the right. The trolley was initially stationary.(g = 10 m/s2 )
At a certain moment when the girl was accelerating, the earth frame acceleration of the trolley is found to be 1 m/s2 . At this moment, the friction force between the girl’s shoes and the trolley’s surface is
In figure shown on the right, the mass of the trolley is 100 kg, and it can move without friction on the horizontal floor. Its length is 12m. The mass of the girl is 50 kg. Friction exists between the shoes of the girl and the trolley’s upper surface, = 1/3. The girl can run with a maximum speed = 9 m/s on the surface of with the trolley, with respect to the surface. At t = 0 the girl starts running from rest to the right. The trolley was initially stationary.(g = 10 m/s2 )
At a certain moment when the girl was accelerating, the earth frame acceleration of the trolley is found to be 1 m/s2 . At this moment, the friction force between the girl’s shoes and the trolley’s surface is
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Two trolley A and B are moving with accelerations a and 2a respectively in the same direction. To an observer in trolley A, the magnitude of pseudo force acting on a block of mass m on the trolley B is
Two trolley A and B are moving with accelerations a and 2a respectively in the same direction. To an observer in trolley A, the magnitude of pseudo force acting on a block of mass m on the trolley B is
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With what minimum acceleration mass M must be moved on frictionless surface so that m remains stick to it as shown. The coefficient of friction between M & mm is g
With what minimum acceleration mass M must be moved on frictionless surface so that m remains stick to it as shown. The coefficient of friction between M & mm is g
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An initially stationary wooden block with a mass of 2 kg is pulled horizontally along a table with a time dependent force 
The coefficients of static and kinetic friction between the block and the table are 0.5 and 0.25 respectively. F(t) as a function of time is shown. Taking : g = 10 m/s2 .
The graph of friction force (f) with time will be
An initially stationary wooden block with a mass of 2 kg is pulled horizontally along a table with a time dependent force The coefficients of static and kinetic friction between the block and the table are 0.5 and 0.25 respectively. F(t) as a function of time is shown. Taking : g = 10 m/s2 .
The graph of friction force (f) with time will be
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From the fixed pulley, masses 2 kg, 1 kg and 3 kg are suspended as shown in the figure. Find the extension in the spring if k = 100 N/m. (Neglect oscillations due to spring)
From the fixed pulley, masses 2 kg, 1 kg and 3 kg are suspended as shown in the figure. Find the extension in the spring if k = 100 N/m. (Neglect oscillations due to spring)
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In the figure shown, all pulleys are massless and frictionless. The time taken by the ball to reach the upper end of the rod is :
In the figure shown, all pulleys are massless and frictionless. The time taken by the ball to reach the upper end of the rod is :
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A small ball of mass M is attached to two identical springs of constant k, which are attached to floor and roof. The springs have unstretched length l/2. At what distance from the ceiling ball remain at equilibrium?
A small ball of mass M is attached to two identical springs of constant k, which are attached to floor and roof. The springs have unstretched length l/2. At what distance from the ceiling ball remain at equilibrium?
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