Question

a pair of two equal and opposite force acting on a body. in such a way that do not lie in the straight line is​

Answer 1

Answer:

ANSWER

A pair of equal and opposite forces acting on a body is called a couple.

It only gives a rotating effect to the body and the torque due to a couple is

given by τ=Fd

where F is equal to the magnitude of one of the forces and

d is the distance between their points of application.

To produce a non-zero angular acceleration , the torque on the body must be non zero.

Hence , the couple can give a non-zero angular acceleration to the body

only when the distance between the points of applications of the forces is non-zero.