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If reaction is R and coefficient of friction is $blank mu$ , what is work done against friction in moving a body by distance d?

$\frac{μ R d}{4}$
$2 μ R d$
$μ R d$
$\frac{μ R d}{2}$

The correct answer is: $mu R d$

As shown a block of mass $M blank$ is lying over rough horizontal surface. Let $blank mu$ be the coeeficient of kinetic friction between the two surfaces in contact. The force Of friction between the block and horizontal surface is given by
$F equals mu R equals mu M g$ ( $because R equals M g right parenthesis$
To move the block without acceleration, the force (P)required will be just equal to the force of friction , ie ,
$P equals F equals mu R$
If d is the distance moved , then work done is given by
$W equals P cross times d equals mu R d$

The force $F$ acting on a particle moving in a straight line is shown in figure. What is the work done by the force on the particle in the 1^st meter of the trajectory

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A frictionless track $A B C D E$ ends in a circular loop of radius $R$ . A body slides down the track from point $A$ which is it $a$ height $h equals 5 blank c m$ . Maximum value of $R$ for the body to successfully complete the loop is

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Domain of definition of the function $f left parenthesis x right parenthesis equals fraction numerator 3 over denominator 4 minus x to the power of 2 end exponent end fraction plus l o g subscript 10 end subscript invisible function application open parentheses x to the power of 3 end exponent minus x close parentheses$ , is

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If $w subscript 1 end subscript comma w subscript 2 blank a n d blank W subscript 3 end subscript end subscript$ represent the work done in moving a particle from A to B along three different paths 1, 2 and 3 respectively(as shown)in the gravitational field of a point mass m. Find the correct relation between $w subscript 1 end subscript comma w subscript 2 end subscript a n d blank w subscript 3 end subscript$

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Given below is a graph between a variable force $left parenthesis F right parenthesis$ (along $y$ -axis) and the displacement $left parenthesis X right parenthesis$ (along $x$ -axis) of a particle in one dimension. The work done by the force in the displacement interval between $0 blank m$ and $30 blank m$ is

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A particle of mass $m$ moving with a velocity $u$ makes an elastic one dimensional collision with a stationary particle of mass $m$ establishing a contact with it for extremely small time $T$ . Their force of contact increases from zero to $F subscript 0 end subscript$ linearly in time $T divided by 4$ , remains constant for a further time $T divided by 2$ and decreases linearly from $F subscript 0 end subscript$ to zero in further time $T divided by 4$ as shown. The magnitude possessed by $F subscript 0 end subscript$ is

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Let $A$ be a set containing 10 distinct elements, then the total number of distinct functions from $A$ to $A$ is-

The domain is defined as the set which is to input in a function. We say that input values satisfy a function. The range is defined as the actual output supposed to be obtained by entering the domain of the function.
Co-domain is defined as the values that are present in the right set that is set Y, possible values expected to come out after entering domain values.

Let $A$ be a set containing 10 distinct elements, then the total number of distinct functions from $A$ to $A$ is-

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The number of bijective functions from set A to itself when a contains 106 elements-

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The work done by a force acting on a body is as shown in the graph. The total work done in covering an initial distance of $20 blank m$ is

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A particle is acted upon by a force $F$ which varies with position $x$ as shown in figure. If the particle at $x equals 0$ has kinetic energy of 25 J, then the kinetic energy of the particle at $x equals 16 blank m$ is

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A vertical spring with force constant $K$ is fixed on a table. A ball of mass $m$ at a height $h$ above the free upper end of the spring falls vertically on the spring so that the spring is compressed by a distance $d$ . The net work done in the process is

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Figure shows the $F$ - $x$ graph. Where $F$ is the force applied and $x$ is the distance covered

By the body along a straight line path. Given that $F$ is in $n e w t o n$ and $x blank$ in $m e t r e$ , what is the work done?

physics-General

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If reaction is R and coefficient of friction is, what is work done against friction in moving a body by distance d?

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If reaction is R and coefficient of friction is $blank mu$ , what is work done against friction in moving a body by distance d?

The correct answer is: $mu R d$

The force $F$ acting on a particle moving in a straight line is shown in figure. What is the work done by the force on the particle in the 1^st meter of the trajectory

The force $F$ acting on a particle moving in a straight line is shown in figure. What is the work done by the force on the particle in the 1^st meter of the trajectory

The pointer reading $v divided by s$ load graph for a spring balance is as given in the figure. The spring constant is

The pointer reading $v divided by s$ load graph for a spring balance is as given in the figure. The spring constant is

The force acting on a body moving along $x$ -axis varies with the position of the particle as shown in the fig

The body is in stable equilibrium at

The force acting on a body moving along $x$ -axis varies with the position of the particle as shown in the fig

The body is in stable equilibrium at

A frictionless track $A B C D E$ ends in a circular loop of radius $R$ . A body slides down the track from point $A$ which is it $a$ height $h equals 5 blank c m$ . Maximum value of $R$ for the body to successfully complete the loop is

A frictionless track $A B C D E$ ends in a circular loop of radius $R$ . A body slides down the track from point $A$ which is it $a$ height $h equals 5 blank c m$ . Maximum value of $R$ for the body to successfully complete the loop is

Let $A$ be a set containing 10 distinct elements, then the total number of distinct functions from $A$ to $A$ is-

Let $A$ be a set containing 10 distinct elements, then the total number of distinct functions from $A$ to $A$ is-

The work done by a force acting on a body is as shown in the graph. The total work done in covering an initial distance of $20 blank m$ is

The work done by a force acting on a body is as shown in the graph. The total work done in covering an initial distance of $20 blank m$ is

A particle is acted upon by a force $F$ which varies with position $x$ as shown in figure. If the particle at $x equals 0$ has kinetic energy of 25 J, then the kinetic energy of the particle at $x equals 16 blank m$ is

A particle is acted upon by a force $F$ which varies with position $x$ as shown in figure. If the particle at $x equals 0$ has kinetic energy of 25 J, then the kinetic energy of the particle at $x equals 16 blank m$ is

A vertical spring with force constant $K$ is fixed on a table. A ball of mass $m$ at a height $h$ above the free upper end of the spring falls vertically on the spring so that the spring is compressed by a distance $d$ . The net work done in the process is

A vertical spring with force constant $K$ is fixed on a table. A ball of mass $m$ at a height $h$ above the free upper end of the spring falls vertically on the spring so that the spring is compressed by a distance $d$ . The net work done in the process is

Figure shows the $F$ - $x$ graph. Where $F$ is the force applied and $x$ is the distance covered

By the body along a straight line path. Given that $F$ is in $n e w t o n$ and $x blank$ in $m e t r e$ , what is the work done?

Figure shows the $F$ - $x$ graph. Where $F$ is the force applied and $x$ is the distance covered

By the body along a straight line path. Given that $F$ is in $n e w t o n$ and $x blank$ in $m e t r e$ , what is the work done?