Question

An object has two equal and opposite force acting on it along the same line state the change is that may take place in its its state of rest or in motion be its size or shape

Answer 1

if it is strechable it will have change in its shape .And will remain on stationary(rest)position.

Answer 2

suppose this is that object (), then

if forces are acting like this

--->()<----

then no change is observed

But if forces are acting like this

------>------->() or say same side

then the state of rest will be changed into state of motion