Momentum Worksheet. Read each question carefully. Show all of your work and equations used. Don’t forget units on finals answers. Assume that any moving object striking a stationary object will stop upon impact. A ball of mass 0.440 kg moving with a speed of 4.5 m/s collides head-on with a 0.220 kg ball at rest. Such a collision is said to be perfectly elastic. While totally fine from a theoretical perspective, such an outcome is practically impossible. In the macroscopic real world, momentum and energy are always dissipated. (In the microscopic world of atoms and molecules collisions are always elastic, but that is another story.) A 5.00 g object moving to the right at +20.0 cm/s makes an elastic head-on collision with a 10.0 g object that is initially at rest. (a) Find the velocity of each object after the collision. (-6.67 m/s, 13.3 m/s) (b) Find the percentage of the initial kinetic energy transferred to the 10.0 g object.(88.9 %) 4. Elastic And Inelastic. Displaying all worksheets related to - Elastic And Inelastic. Worksheets are Physics 03 08 elastic and inelastic collisions name, 5 2 conservation of momentum, Work for exploration elastic and inelastic, Elastic collisions, Price elasticity of demand example questions, Elastic collisions answer key, Elasticities of demand and supply today add elasticity, Chapter 4 demand ... About This Quiz & Worksheet. The purpose of this quiz/worksheet is to test you on equations used to analyze collisions, as well as the qualities of elastic and inelastic collisions.