I need solve this question

Problem 1 Consider two objects of masses m1= 8.022 kg and m2 = 1.989 kg. The first mass (mj) is traveling along the negative y- axis at 49.3 km/hr and strikes the second stationary mass m2, locking the two masses together. a) What is the velocity of the first mass before the collision? > m/s b) ( What is the velocity of the second mass before the collision? V m2 = m/s C ) ( The final velocity of the two masses can be calculated using the formula number: (Note: use the formula-sheet given in the introduction section) d) ;) What is the final velocity of the two masses? V / =x > m/s e) *) Choose the correct answer: f) ( ) What is the total initial kinetic energy of the two masses? Ki= g) (. ) What is the total final kinetic energy of the two masses? Kf= h ) ( ) How much of the mechanical energy is lost due to this collision? Eint=