A 3 kg ball moving to the right on a frictionless table at 5 m/s makes a head on collision with another 3 kg ball with a velocity of 4 m/s to the left. If the collision is perfectly inelastic. i) Draw the velocity diagram before collision reflecting the quantities involved ii) Draw the force diagram identifying the forces during collision iii) Draw the velocity diagram after collision

Which of these statements are true? Explain why below: a) If an elastic collision occurs, then the change in total momentum is unpredictable. b) If an elastic collision occurs, then the total momentum is increased by the collision. c) If an elastic collision occurs, then the total momentum is decreased by the collision. d) If an elastic collision occurs, then the total momentum remains essentially unchanged by the collision. Explanation:___________________________________________________________________________________________________________________________________________________________________________________________________________________________________

A brick stands on the ground vertically, as shown. A ball made of clay with mass m is thrown with velocity v at the brick and sticks to it. Another ball made of aluminum but with the same mass m is also thrown with the same velocity v at the brick but instead bounces off of it. Which ball is more likely to knock the brick over? a. Not enough information. b. the clay ball c. the aluminum ball d. Both balls are equally likely to knock over the brick.

Which one among the following statements is CORRECT? A.) Momentum is a scalar quantity B.) In an elastic collision, momentum is conserved but kinetic energy is not C.) In an elastic collision, both momentum and kinetic energy are conserved D.) In an inelastic collision, both momentum and kinetic energy are conserved

Elastic collision An object with mass m, traveling at speed 2v approaches a second object with mass 4m moving at speed v (both are traveling in the same direction). The two collide elastically: (a) Produce expressions for their speeds after the collision in terms of v. (b) Verify that kinetic energy is conserved in this collision.

SC 24: Module 4 Assignment Booklet 48 For questions 17 to 21, read each question carefully. Decide which of the choices BEST answers the question. Place your answer in the blank space given. 17. Two vehicles with the same mass and travelling the same speed in opposite directions hit head on. What is the total momentum immediately after the collision? A. zero B. double that of each car C. one half that of each car D. four tirnes that of each car Use the following diagram to answer questions 18 and 19. Car B Car A nt Bookl ence 24

8.) In this photo, a fire extinguisher provides the impulse for a hallway rocket cart. Which is NOT true about the motion of the rocket cart and person? a.) The cart and person are propelled as a result of gas from the fire extinguisher pushing against air in the room. b.) The force of the gas on the cart and person is equal and opposite to the force of the person and cart on the expelled gas.      c.) The momentum of the cart and person is equal in magnitude and opposite in direction to the momentum of the expelled gas.

1a) A 4.50 kg ball rolling north at 5.00 m/s collides with a 2.50 kg ball rolling south at 3.00 m/s. If the collision is elastic, set up the equations you would solve to determine how fast is each ball moving after the collision. 1b) If the collision between the two balls in question 1 instead results in both balls sticking together as one, what will their resulting velocity be?

18. If car A has a greater momentum than car B, what will happen to both vehicles immediately after they collide? A. They will travel to the right. B. They will travel to the left. C. They will stop immediately. D. It cannot be determined from this information. 19. If both cars are travelling the same speed and car B has a greater mass, what will happen to both vehicles after they collide? A. They will travel to the right. B. They will travel to the left. C. They will stop immediately. D. It cannot be determined from this information.

1. Calculate the magnitude of the impulse during the collision. 2. Calculate the magnitude and direction of the velocity of the 4.0 kg cart after the collision. 3. Calculate the mass m of the second cart