(20%) Problem 1: Two objects that are constrained to move in the xy-plane undergo a collision. Object 1 has mass 25 kg and its initial momentum just before the collision has the x and y-components 18 kg-m/s and -5 3 kg-m/s, respectively. Object 2 has mass 45 kg and the x and ycomponents of its initial momentum are 3.5 kgvm/ s and 5.8 kg-m/s. Immediately after the collision the x and y-components of object 1's nal momentum are 12.3 kg~ml s and 5.4 kg-m/s. D 3 11 % Part (a) Calculate the x-component of the total initial momentum of this system, in units of kg'm/s. pix= :l HOME END 0 Degrees Radians x/O BACKSPACE m CLEAR Submit Hint Feedback I give up! Hints: 2% deduction per hint. Hints remaining: l Feedback: 2% deduction per feedback. Grade Summary Deductions 0 % Potential 100% Submissions Attempts remaining: E (Q per attempt) detailed view E 3 11 % Part (b) Calculate the ycomponent of the total initial momentum of this system, in units of kg-m/s. E 3 11 % Part (c) Calculate the xcomponent of the nal momentum of object 2, in units of kg-m/s. E 3 11 % Part (d) Calculate the ycomponent of the nal momentum of object 2, in units of kg'm/s. E 3 11 % Part (e) To nd the nal momentum of object 2 you applied the Momentum Principle to this system. Choose the statement that best justies your use of that principle. E 3 11 % Part (D Calculate the initial total kinetic energy of the two objects. in joules. E 3 11 % Part (g) Calculate the nal total kinetic energy of the two objects, in joules. E 3 11 % Part (h) Calculate the change in the internal energy of the two objects, in joules. E 3 11 % Part (i) To nd the change in the objects' internal energy you applied the Energy Principle to this system. Select the two statements that best justify your use of that principle