Question

What is basic difference between couple and torque?
also need to know SI Units Of Each quantity.

Answer 1

$\Huge\bf{\blue {Answer:-}}$

$\textbf{DIFFERENCE BETWEEN COUPLE}$ $\textbf {AND TORQUE:-}$

$\textbf{\underline {\underline {COUPLE:-}}}$

The couple is define as "When the two forces working on a same object which should be in equal magnitudes but in a opposite direction then its known as couple.

$\textbf {\underline {\underline {TORQUE:}}}$

Torque defines as"When in a object only one force is worked or applied and make it rotatable its known as torque.in torque its described about the turning effects of objects- motion or speedness, strongness in all directions etc.

$\textbf {\underline {\underline {S.I}}}$= Newton meter is the s.i. unit of both

Answer 2

The basic difference between couple and torque are as follows :-

(i) Couple is defined as the two forces of equal magnitude which are exactly opposite in directions .

(ii) Torque is the force experienced by a body which is pivoted at a point and this enables the body to rotate about the pivoted point .

(i) The moment of couple is defined as the product of the force and the distance between the point of couple and the pivoted point .

(ii) The moment of torque is defined as the product of the force and the distance of point of application of force from the pivot .

The units for both are the same .

Unit of torque = unit of force × unit of distance .

⇒ Unit of torque = Newton metres ( Nm ) .

DETAILS :

When a body is free to move and it experiences a force at a point , then translational motion is observed .

When a body is pivoted , then rotational motion is observed .

The body always rotates about the axis of rotation .

The pivoted point is the point which results in rotational motion .