(B) The torque $\tau$ is defined as the product of the force $F$ and the perpendicular distance $r$ from the axis of rotation to the line of action of

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(B) The torque $\tau$ is defined as the product of the force $F$ and the perpendicular distance $r$ from the axis of rotation to the line of action of the force.Given:Force $F = 10\,N$Radius $r = 0.5\,m$Since the force is applied tangentially to the circumference,the perpendicular distance is equal to the radius of the disc.Therefore,torque $\tau = F \times r = 10\,N \times 0.5\,m = 5\,N-m.$

Class 11 Physics System of Particles and Rotational Motion Torque and Couple

Easy

The moment of inertia of a disc of radius $0.5\,m$ about its geometric axis is $2\,kg-m^2.$ If a string is tied to its circumference and a force of $10\,N$ is applied,the value of torque with respect to this axis will be ........ $N-m.$

A
$2.5$
B
$5$
C
$10$
D
$20$

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Chapter

System of Particles and Rotational Motion

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Torque and Couple

$A$ couple produces:

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The moment of the force,$\overrightarrow{F} = 4\hat{i} + 5\hat{j} - 6\hat{k}$ at point $(2, 0, -3)$,about the point $(2, -2, -2)$,is given by

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If $\vec{F} = (4\hat{i} - 10\hat{j})$ and $\vec{r} = (5\hat{i} - 3\hat{j})$,then calculate the torque $\vec{\tau} = \vec{r} \times \vec{F}$. (in $\hat{k}$)

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Find the torque of a force $\vec F = -3\hat i + \hat j + 5\hat k$ acting at the point $\vec r = 7\hat i + 3\hat j + \hat k$ with respect to the origin.

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The rotational effect is produced by

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The moment of inertia of a disc of radius $0.5\,m$ about its geometric axis is $2\,kg-m^2.$ If a string is tied to its circumference and a force of $10\,N$ is applied,the value of torque with respect to this axis will be ........ $N-m.$

Similar Questions

$A$ couple produces:

The moment of the force,$\overrightarrow{F} = 4\hat{i} + 5\hat{j} - 6\hat{k}$ at point $(2, 0, -3)$,about the point $(2, -2, -2)$,is given by

If $\vec{F} = (4\hat{i} - 10\hat{j})$ and $\vec{r} = (5\hat{i} - 3\hat{j})$,then calculate the torque $\vec{\tau} = \vec{r} \times \vec{F}$. (in $\hat{k}$)

Find the torque of a force $\vec F = -3\hat i + \hat j + 5\hat k$ acting at the point $\vec r = 7\hat i + 3\hat j + \hat k$ with respect to the origin.

The rotational effect is produced by

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