Physics-
General
Easy

Question

The coefficients of static and dynamic frictions are 0.7 and 0.4.The minimum force required to create motion is applied on a body, and if it is further continued, the acceleration attained by the body is..

  1. 7    
  2. 4    
  3. 3    
  4. 0    

The correct answer is: 3


    Related Questions to study

    General
    physics-

    A boy of mass M is applying a horizontal force to slide a box of mass M1 on a rough horizontal surface The coefficient of friction between the shoes of the boy and the floor is μ and that between the box and the floor is μ1 In which of the following cases it is certainly not possible to slide the box?

    A boy of mass M is applying a horizontal force to slide a box of mass M1 on a rough horizontal surface The coefficient of friction between the shoes of the boy and the floor is μ and that between the box and the floor is μ1 In which of the following cases it is certainly not possible to slide the box?

    physics-General
    General
    physics-

    Consider the situation shown in figure The wall is smooth but the surfaces of A and B in contact are rough. The friction on B due to A in equilibrium

    Consider the situation shown in figure The wall is smooth but the surfaces of A and B in contact are rough. The friction on B due to A in equilibrium

    physics-General
    General
    physics-

    It is easier to pull a lawn roller than to push it because pulling.

    It is easier to pull a lawn roller than to push it because pulling.

    physics-General
    parallel
    General
    physics-

    In the above question mass of the block is...

    In the above question mass of the block is...

    physics-General
    General
    physics-

    The component of weight which equals friction, so that the block does not slide on a wedge is...

    The component of weight which equals friction, so that the block does not slide on a wedge is...

    physics-General
    General
    physics-

    Due to friction ____ energy is produced.

    Due to friction ____ energy is produced.

    physics-General
    parallel
    General
    physics-

    The maximum frictional force when the body is ready to start is called.

    The maximum frictional force when the body is ready to start is called.

    physics-General
    General
    physics-

    Rolling friction is always...

    Rolling friction is always...

    physics-General
    General
    physics-

    The block in the above question is maintained at the position by external means and the level of liquid is lowered. The height h2 when this external force reduces to zero is...

    The block in the above question is maintained at the position by external means and the level of liquid is lowered. The height h2 when this external force reduces to zero is...

    physics-General
    parallel
    General
    physics-

    A wooden cylinder of diameter 4r, height h and density ρ/3 is kept on a tank of diameter 2r filled with liquid of density ρ as shown in figure. Now level of the liquid starts decreasing slowly. When the level of liquid is at a height hs above the cylinder the block starts moving up. At what value of h1 , will the block rise ?

    A wooden cylinder of diameter 4r, height h and density ρ/3 is kept on a tank of diameter 2r filled with liquid of density ρ as shown in figure. Now level of the liquid starts decreasing slowly. When the level of liquid is at a height hs above the cylinder the block starts moving up. At what value of h1 , will the block rise ?

    physics-General
    General
    physics-

    A body floats in a liquid contained in a beaker, the whole system as shown falls freely under gravity. The up thrust on the body is

    A body floats in a liquid contained in a beaker, the whole system as shown falls freely under gravity. The up thrust on the body is

    physics-General
    General
    physics-

    A block of wood of length 50cm and area of cross section 10cm2 floats in water with 3 divided by 5 of its length above water. Calculate the weight of wood.

    A block of wood of length 50cm and area of cross section 10cm2 floats in water with 3 divided by 5 of its length above water. Calculate the weight of wood.

    physics-General
    parallel
    General
    physics-

    A piece of iron of density 7.8 cross times 10 to the power of 3 end exponent k g divided by 3 and volume 100cm3 is totally immersed in water Calculate upthrust if open parentheses d equals 1000 to the power of k g end exponent divided by m to the power of 3 end exponent close parentheses

    A piece of iron of density 7.8 cross times 10 to the power of 3 end exponent k g divided by 3 and volume 100cm3 is totally immersed in water Calculate upthrust if open parentheses d equals 1000 to the power of k g end exponent divided by m to the power of 3 end exponent close parentheses

    physics-General
    General
    physics-

    A beaker containing a liquid of density ρ moves up with an acceleration a. The pressure due to liquid at a depth h below the free surface of liquid is..

    A beaker containing a liquid of density ρ moves up with an acceleration a. The pressure due to liquid at a depth h below the free surface of liquid is..

    physics-General
    General
    physics-

    Pressure is isotropic means,

    Pressure is isotropic means,

    physics-General
    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.