#9 in the bottom also asks for the type of collision and an answer in a full sentence.

7. In a physics lab, a 0.500-kg cart (Cart A) moving with a speed of 129 cm/s encounters a magnetic collision with a 1.50-kg cart (Cart B) that is initially at rest. The 0.500-kg cart rebounds with a speed of 45 cm/s in the opposite direction. Determine the post-collision speed of the LSD-kg cart. Answer (in full sentence): 8. A 3000-kg truck moving rightward with a speed of 5 km/hr collides head-on with a 1000-kg car moving leftward with a speed of 10 km/hr. The two vehicles create an inelastic collision. Determine the post-collision velocity of the car and truck. (CAREFUL: Be cautious of the +/- sign on the velocity of the two vehicles.) Type of Collision : Answer (in full sentence): 9. During a goal-line stand, a 75-kg fullback moving eastward with a speed of 8 m/s collides head-on with a loo-kg lineman moving westward with a speed of 4 m/s. The two players collide & create an inelastic collision. Determine the post-collision velocity of the two players. (CAREFUL: Be cautious of the +/- sign on the velocity)