Physics-
General
Easy
Question
Find the time in which 2 kg mass will strikes the pulley after being released from rest.
- 10 sec
- 2 sec
- 5 sec
- 4 sec
The correct answer is: 10 sec
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Two blocks A & B with mass 4 kg and 6 kg respectively are connected by a stretched spring of negligible mass as in figure . When the two blocks are released simultaneously the initial acceleration of B is 1.5 m/s2 westward . The acceleration of A is :
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Fig shows two pulley arrangements for lifting a mass m. In
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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, with 
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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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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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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, with = 1/3. The girl can run with a maximum speed = 9 m/s on the surface of 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 = )
The minimum time in which the girl can stop from 9 m/s relative speed, to zero relative speed, without causing her shoes to slip 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, with = 1/3. The girl can run with a maximum speed = 9 m/s on the surface of 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 = )
The minimum time in which the girl can stop from 9 m/s relative speed, to zero relative speed, without causing her shoes to slip is
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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, with = 1/3. The girl can run with a maximum speed = 9 m/s on the surface of 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 
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The total kinetic energy of system (trolley + girl) at the instant the girl acquires her maximum relative speed with respect to trolley, 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, with = 1/3. The girl can run with a maximum speed = 9 m/s on the surface of 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 )
The total kinetic energy of system (trolley + girl) at the instant the girl acquires her maximum relative speed with respect to trolley, is
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The minimum time in which the girl can acquire her maximum speed, for no slipping, is
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Logic gates X and Y have the truth tables shown below
When the output of X is connected to the input of Y, the resulting combination is equivalent to a single.
Logic gates X and Y have the truth tables shown below
When the output of X is connected to the input of Y, the resulting combination is equivalent to a single.
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The logic circuit shown below has the input waveforms ‘A’ and ‘B’ as shown. Pick out the correct output waveform
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Truth table for system of four NAND gates as shown in figure is :
Truth table for system of four NAND gates as shown in figure is :
physics-General
