Shearing is done in case of Processing of ( Silk / Wool / Jute ).

WOOL IS THE ANSWER

ANSWER BY THE KHUSHAN SIR

wool maybe, I was a bit confused in silk and wool but wool

Mary concludes that the foam rubber balls’ acceleration during the collision was THE SAME AS the steel balls’ acceleration. She concludes that the collision between the foam rubber balls is an ELASTIC collision.

The masses of the two objects are the same therefore its acceleration would also become the same. It is an elastic collision because little or less friction occurred in the situation creating kinetic energy.