Answer Happy

Question 3 (2.5 points) An object of mass 7 kg moving at a speed of 10 m/s collides with a ball of mass 6 kg moving in the opposite direction as 7 kg ball with a speed of 7. If 7 kg ball moves with a speed of 1 m/s after collision, what will be the speed of 6 kg ball in m/s? Round your answer to two decimal places. Your Answer: Answer Question 4 (2.5 points) An object of mass 8 kg moving at a speed of 5 m/s collides with a ball of mass 7 kg moving in the opposite direction as 8 kg ball with a speed of 7. If 8 kg ball moves with a speed of 4 m/s after collision, What is the difference in KE of the system before and after the collision (Hint: Do before - after). Round your answer to two decimal places. Your Answer: Answer