5.02 Third Law, Momentum and Impulse Please enter your name here: 1'60 Complete each question. Be sure to show your work and clearly circle each answer to be eligible for full credit - or to earn partial credit for work that is correct even if the answer is incorrect. All answers should include units and if the answer is a vector then it also should include a direction. 1. Calculate the momentum of a 1500 kg car traveling north on the highway at 17 m/s. (5 points) 25500 kg m/s 2. A 0.12 kg robin flies through the air with 1.7 kg-m/s of momentum. What is the speed of the Robin? (5 points) . l Photo by Richard Hurd ICC-BY 2.0 3. Aforce of 55 N is applied to a 7.3 kg bowling ball for 0.81 seconds. A. If the bowling ball was initially at rest, what is the momentum of the bowling ball after the force was applied? (5 points) B. How fast is the bowling ball moving? (5 points) {Elm PHYSICS by MN Partnership forCoIIaborative Curriculum is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License. Photo by Xiaphiasl CCBY-SA 3.0 4. A pitcher applies an average force of 6.2 N in the forward direction on a baseball for 0.65 seconds. The baseball's mass is 0.145 kg. and initial velocity is zero. A. What momentum does the baseball have as it is released by the pitcher? (5 points) B. How fast is the baseball going after the impulse? (5 points) 5. The catcher catches the baseball in the problem above. It takes 0.15 seconds to stop the ball. How much average force must the catcher apply during that time interval? (Ignore air resistance.) (5 points) 6. A hockey puck slides across the ice at an initial velocity of 1.3 mls. The mass of the hockey puck is 0.17 kg. Friction between the ice and the puck is 0.090 N. A. Draw a free body diagram of the puck. (5 points) B. Calculate the time it would take for the puck to come to a complete stop. (5 points) Photo by Janothirdl CC-BYSA 3.0 {lm PHYSICS by MN Partnership forCollaborative Curriculum is licensed undera Creative Commons Attribution-NonCommercial 4.0 International License. 7. A pool cue ball moving at 2.1 m/s east collides in a straight line with the eight ball at rest. ( You may assume that the cue ball and the eight ball have the same mass.) Find the velocity of the eight ball after the collision if momentum is conserved and A. the cue ball stops. (5 points) B. the cue ball continues on in the same direction at 0.10 m/s. (5 points) C. the cue ball continues on in the same direction at 0.70 m/s. (5 points) {lm PHYSICS by MN Partnership forColIaboralive Curriculum is licensed undera Creative Commons Allribulion-NonCommercial 4.0 International License