Physics
General
Easy

Question

Two blocks of Nass 8 kg and 4 kg and connected a heavy string placed on rough horizontal plane,  4 kg block is Pulled with a constant force F. The co-efficient of friction between the blocks and the ground is 0.5 , what is the value of F, So that the tension in the spring is constant throughout during the motion of the blocks? (g=10ms-2)

  1. 40 N
  2. 60 N
  3. 50 N
  4. 30 N

The correct answer is: 60 N

Related Questions to study

General
Maths-

Letf left parenthesis x right parenthesis equals fraction numerator x plus 1 over denominator x minus 1 end fraction comma text  fof  end text left parenthesis x right parenthesis equals f squared left parenthesis x right parenthesis semicolon f o f o f left parenthesis x right parenthesis equals f cubed left parenthesis x right parenthesis comma text  fofofof  end text left parenthesis x right parenthesis equals f to the power of 4 left parenthesis x right parenthesis horizontal ellipsis text  then  end text f subscript left parenthesis x right parenthesis end subscript superscript 2008 equals

Letf left parenthesis x right parenthesis equals fraction numerator x plus 1 over denominator x minus 1 end fraction comma text  fof  end text left parenthesis x right parenthesis equals f squared left parenthesis x right parenthesis semicolon f o f o f left parenthesis x right parenthesis equals f cubed left parenthesis x right parenthesis comma text  fofofof  end text left parenthesis x right parenthesis equals f to the power of 4 left parenthesis x right parenthesis horizontal ellipsis text  then  end text f subscript left parenthesis x right parenthesis end subscript superscript 2008 equals

Maths-General
General
physics

On the horizontal surface of a truck (=0.6) . a block of mass 1kg is placed. If the truck is accelerating at the rale of 5 m/s2 then frictional force on the block will be_

On the horizontal surface of a truck (=0.6) . a block of mass 1kg is placed. If the truck is accelerating at the rale of 5 m/s2 then frictional force on the block will be_

physicsGeneral
General
Physics

A plate of mass M is placed on a horizontal frictionless surface and a body of mass m  is placed on this plate, The coefficient of dynamic friction between this body and the plate is µ . If a force 2µmg. is applied to the body of mass in along the horizonal direction the acceleration of the plate will be ……

A plate of mass M is placed on a horizontal frictionless surface and a body of mass m  is placed on this plate, The coefficient of dynamic friction between this body and the plate is µ . If a force 2µmg. is applied to the body of mass in along the horizonal direction the acceleration of the plate will be ……

PhysicsGeneral
parallel
General
physics-

As shown in figure, the object having mass M is executing S.H.M. with an amplitude A The amplitude of point P shown in figure will be ……

As shown in figure, the object having mass M is executing S.H.M. with an amplitude A The amplitude of point P shown in figure will be ……

physics-General
General
physics-

The figure shows a graph of displacement versus time for a particle executing S.H.M. The acceleration of the S.H.O. at the end of time t equals fraction numerator 4 over denominator 3 end fraction second is…..cm-2

The figure shows a graph of displacement versus time for a particle executing S.H.M. The acceleration of the S.H.O. at the end of time t equals fraction numerator 4 over denominator 3 end fraction second is…..cm-2

physics-General
General
physics-

As shown in figure, a body having mass m is attached with two springs having spring constants k1 and k subscript 2 end subscript - The frequency of oscillation is f. Now, if the springs constants of both the springs are increased 4 times, then the frequency of oscillation will be equal to .

As shown in figure, a body having mass m is attached with two springs having spring constants k1 and k subscript 2 end subscript - The frequency of oscillation is f. Now, if the springs constants of both the springs are increased 4 times, then the frequency of oscillation will be equal to .

physics-General
parallel
General
physics

Three forces are acting simultaneously on a particle mowing with velocity straight V with rightwards arrow on top.These forces are represcaled in magnitude and direction by the three sides of a triangle . The particle will now move with velocity…..

Three forces are acting simultaneously on a particle mowing with velocity straight V with rightwards arrow on top.These forces are represcaled in magnitude and direction by the three sides of a triangle . The particle will now move with velocity…..

physicsGeneral
General
physics-

Three identical springs are shown in figure. When a 4 kg mass is suspended from spring A, its length increases by lcm. Now if a 6 kg mass is suspended from the froe end of spring C, then increase in its length is.

Three identical springs are shown in figure. When a 4 kg mass is suspended from spring A, its length increases by lcm. Now if a 6 kg mass is suspended from the froe end of spring C, then increase in its length is.

physics-General
General
physics-

If a bar magnet of length land cross-sectional area A is cut into two equal parts as shown in figure, then the pole strength of each pole becomes

If a bar magnet of length land cross-sectional area A is cut into two equal parts as shown in figure, then the pole strength of each pole becomes

physics-General
parallel
General
physics-

As shown in figure, two masses of 3.0 kg and 1.0 kg are attached at the two ends of a spring having force constant 300 Ntext end text m to the power of negative 1 end exponent. The natural frequency of oscillation for the system will be .......hz (Ignore friction)

As shown in figure, two masses of 3.0 kg and 1.0 kg are attached at the two ends of a spring having force constant 300 Ntext end text m to the power of negative 1 end exponent. The natural frequency of oscillation for the system will be .......hz (Ignore friction)

physics-General
General
physics-

When a body having mass m is suspended from the free end of two springs suspended from a rigid support, as shown in figure, its periodic time of oscillation is T.  If only one of the two springs are used, then the periodic time would be…

When a body having mass m is suspended from the free end of two springs suspended from a rigid support, as shown in figure, its periodic time of oscillation is T.  If only one of the two springs are used, then the periodic time would be…

physics-General
General
physics-

A current carrying loop is placed in a uniform magnetic field in four different orientations, I, II, III and IV, arrange them in the decreasing order of potential energy
III

IIIIV

A current carrying loop is placed in a uniform magnetic field in four different orientations, I, II, III and IV, arrange them in the decreasing order of potential energy
III

IIIIV

physics-General
parallel
General
chemistry-

Which of the following statements are correct?
A) Like halogens, hydrogen combine with non metals forming covalent compounds.
B) Hydrogen as well as halogens have tendency of accepting electrons.
C) The oxide of hydrogen is natural, as is the case with oxide of halogens
D) Hydrogen and halogen form hydride ions with equal ease.

Which of the following statements are correct?
A) Like halogens, hydrogen combine with non metals forming covalent compounds.
B) Hydrogen as well as halogens have tendency of accepting electrons.
C) The oxide of hydrogen is natural, as is the case with oxide of halogens
D) Hydrogen and halogen form hydride ions with equal ease.

chemistry-General
General
Maths-

left parenthesis a with not stretchy bar on top times ı with not stretchy bar on top right parenthesis squared plus left parenthesis a with not stretchy bar on top times ȷ with not stretchy bar on top right parenthesis squared plus left parenthesis a with not stretchy bar on top times k with not stretchy bar on top right parenthesis squared equals

left parenthesis a with not stretchy bar on top times ı with not stretchy bar on top right parenthesis squared plus left parenthesis a with not stretchy bar on top times ȷ with not stretchy bar on top right parenthesis squared plus left parenthesis a with not stretchy bar on top times k with not stretchy bar on top right parenthesis squared equals

Maths-General
General
physics

A force of 8 N acts on an object of mass 5 kg in X- direction and another force of 6 N  acts on in in Y . direction. Hence, the magnitude of acceleration of object will be

A force of 8 N acts on an object of mass 5 kg in X- direction and another force of 6 N  acts on in in Y . direction. Hence, the magnitude of acceleration of object will be

physicsGeneral
parallel

card img

With Turito Academy.

card img

With Turito Foundation.

card img

Get an Expert Advice From Turito.

Turito Academy

card img

With Turito Academy.

Test Prep

card img

With Turito Foundation.