Betty (mass 40-kg), standing on a frictionless ice patch, catches her leaping dog imass 1s-kgl which is moving directly horizontally, at 3.0 m/s. answer the following questions a. compute betty's momentum before collision with her doggie. 8. compute the momentum of her dog before collision c. compute the direction and the speed of betty and her dog after collision it takes betty 0.2 s to secure the dog in her arms, compute the force with which the dog hit betty. d.