University Physics 1 - Momentum, Impulse, and Collisions I need help with this problem and an explanation of the solutions described below:   If an air track were tilted, would momentum be conserved in a collisions experiment? Explain.

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

1D Elastic Collision 1. You have two balls. They will collide elastically in 1D. Choose the following: • The masses of the balls (they cannot have the same mass). • The initial velocities of the balls (neither can be at rest).  Solve for the final velocities of the balls after the collision using Conservation of Momentum and Conservation of Energy  • Solve, you must draw a picture, set photo 1 and photo 2, and draw origin and axes?

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?

0₁ 5. Student A cadet's life was saved in an automobile accident because an airbag expanded to stop the motion of his head. If the airbag had not deployed, the windshield would have stopped the motion of his head in a much shorter time. Compared to the windshield, the airbag: caused a much smaller change in momentum of the cadet's head. b. exerted a much smaller impulse on the cadet's head. caused a much smaller change in kinetic energy of the cadet's head. d. exerted a much smaller force on the cadet's head. did much more work on the cadet's head. a. 0. e biect is equal to:

5. *A ball of mass 6.5 kg moving with a speed of 15 m/s to the right collides head-on with a 3.5 kg ball which is at rest. If the collision is elastic, what is the speed and direction of each ball after the collision?