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Physics-

General

Easy

Question

Two blocks are arranged as shown in the figure. The relation between acceleration a₁ and a₂ is :

$a_{1} = a_{2}$
$a_{1} = 6 a_{2}$
$a_{1} = 3 a_{2}$
$a_{1} = 4 a_{2}$

The correct answer is: $a subscript 1 end subscript equals 4 a subscript 2 end subscript$

Related Questions to study

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 $mu$ = 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 = $10 m divided by s to the power of 2 end exponent$ )

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, with $mu$ = 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 = $10 m divided by s to the power of 2 end exponent$ )

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

physics-General

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 $mu$ = 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 = $10 m divided by s to the power of 2 end exponent$ )

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 $mu$ = 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 = $10 m divided by s to the power of 2 end exponent$ )

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

physics-General

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 $mu$ = 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 $equals 10 m divided by s to the power of 2 end exponent$ )

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 $mu$ = 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 $equals 10 m divided by s to the power of 2 end exponent$ )

The total kinetic energy of system (trolley + girl) at the instant the girl acquires her maximum relative speed with respect to trolley, is

physics-General

parallel

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 $mu$ = 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 $equals 10 m divided by s to the power of 2 end exponent$ )

The minimum time in which the girl can acquire her maximum speed, for no slipping, 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 $mu$ = 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 $equals 10 m divided by s to the power of 2 end exponent$ )

The minimum time in which the girl can acquire her maximum speed, for no slipping, is

physics-General

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.

physics-General

The logic circuit shown below has the input waveforms ‘A’ and ‘B’ as shown. Pick out the correct output waveform

The logic circuit shown below has the input waveforms ‘A’ and ‘B’ as shown. Pick out the correct output waveform

physics-General

parallel

Truth table for system of four NAND gates as shown in figure is :

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physics-General

Which of the following truth tables is true?

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physics-General

The following configuration of gates is equivalent to

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parallel

Figure shows the transfer characteristics of a base biased CE transistor Which of the following statements are true ?

A) At V₁=0.4V transistor is in active state
B) At V₁=1V it can be used as an amplifier
C) At V₁=0.5V, It can be used as a switch turned off
D) At V₁=2.5V, it can be used as a switch turned on

Figure shows the transfer characteristics of a base biased CE transistor Which of the following statements are true ?

A) At V₁=0.4V transistor is in active state
B) At V₁=1V it can be used as an amplifier
C) At V₁=0.5V, It can be used as a switch turned off
D) At V₁=2.5V, it can be used as a switch turned on

physics-General

I don’t like sports, _____________ does my dad.

I don’t like sports, _____________ does my dad.

In the circuit, transistor has a current $left parenthesis beta right parenthesis$ =100 What should be the base resistor R_B neglect V_BE , so that V_CE=5V

In the circuit, transistor has a current $left parenthesis beta right parenthesis$ =100 What should be the base resistor R_B neglect V_BE , so that V_CE=5V

physics-General

parallel

In the diagram D an ideal diode and an alternating voltage of peak value 10V is connected as input V₁ Which of the following diagram represents the correct waveform of output voltage $V subscript theta end subscript$ ?

In the diagram D an ideal diode and an alternating voltage of peak value 10V is connected as input V₁ Which of the following diagram represents the correct waveform of output voltage $V subscript theta end subscript$ ?

physics-General

In the circuit shown in figure (1), the $V subscript 0 end subscript comma I subscript 1 end subscript comma I subscript D subscript 1 end subscript end subscript comma text and end text I subscript D subscript 3 end subscript end subscript$ are respectively

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physics-General

Identify the gate represented by the block diagram as shown in fig.

Identify the gate represented by the block diagram as shown in fig.

physics-General

parallel

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