1. A 5-kg big fish is swimming at 1 m/s towards a 1-kg small fish at rest as shown in the figure. What is the velocity of the larger fish immediately after swallowing the smaller fish for lunch? Ignore the effects of water resistance (Hewitt, 2015). C Figure 4. Large-small-fish colliding process. (Hewitt, 2015) 2. A marksman holds a rifle of mass m MR = 3.00 kg loosely, so it can recoil freely. He fires a bullet of VB mass m = 5.00 g horizontally with a velocity relative to the ground of v =+ 300 m/s. What is the recoil velocity v of the rifle? (Young and Freedman, 2012) BONUS: What is the total kinetic energy of the rifle and bullet after it was fired? Before -X Rifle + bullet After ? Vax=300 m/s -X m₂ = 3.00 kg ma= 5.00g Image source: H. Young and R. Freedman. (2012). University Physics with Modern Physics, 13th Ed. Pearson Education, Inc. San Francisco, CA. 3. A 68.5-kg astronaut is doing a repair in space on the orbiting space station. She throws a 2.25-kg tool away from her at 3.20 m/s. With what speed and in what direction will she begin to move?

1. A 5-kg big fish is swimming at 1 m/s towards a 1-kg small fish at rest as shown in the figure. What is the velocity of the larger fish immediately after swallowing the smaller fish for lunch? Ignore the effects of water resistance (Hewitt, 2015). C Figure 4. Large-small-fish colliding process. (Hewitt, 2015) 2. A marksman holds a rifle of mass m MR = 3.00 kg loosely, so it can recoil freely. He fires a bullet of VB mass m = 5.00 g horizontally with a velocity relative to the ground of v =+ 300 m/s. What is the recoil velocity v of the rifle? (Young and Freedman, 2012) BONUS: What is the total kinetic energy of the rifle and bullet after it was fired? Before -X Rifle + bullet After ? Vax=300 m/s -X m₂ = 3.00 kg ma= 5.00g Image source: H. Young and R. Freedman. (2012). University Physics with Modern Physics, 13th Ed. Pearson Education, Inc. San Francisco, CA. 3. A 68.5-kg astronaut is doing a repair in space on the orbiting space station. She throws a 2.25-kg tool away from her at 3.20 m/s. With what speed and in what direction will she begin to move?

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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