Answer the following questions on the basis your understanding of the followingparagraph and the related studied concepts.1. Suppose two objects (two balls) A and B of masses ‘mA‘, and ‘mB’ are travelling in the samedirection along a straight line with different velocities ‘uA’ and ‘uB’ respectively. And there areno other external force acting on them. Let ‘ uA > uB, , and the two balls collide each other asshown in the figure( fig.9.14. page 123). During the collision which last for a time ‘t’, the ball Aexerts a force FAB on ball B and the ball B exerts a force FBA on ball A . Suppose ‘vA’ and ‘vB’ arethe velocities of the two balls A and B after collision, respectively.