Jack and Jill are maneuvering a 3200 kg boat near a dock. Initially the boat's position is < 2, 0, 3 > m and its speed is 1.5 m/s. As the boat moves to position < 6, 0, 1 > m, Jack exerts a force of < -400, 0, 200 > N, and Jill exerts a force of < 160, 0, 320 > N. How much work does Jack do? Wjack - How much work does Jill do? Wa = Which person exerted a force perpendicular to the displacement of the boat? O Jack O Jil O neither Jack nor Jill O both Jack and Jill What is the final speed of the boat? m/s

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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Jack and Jill are maneuvering a 3200 kg boat near a dock. Initially, the boat's position is ⟨2, 0, 3⟩ meters and its speed is 1.5 m/s. As the boat moves to position ⟨6, 0, 1⟩ meters, Jack exerts a force of ⟨-400, 0, 200⟩ N, and Jill exerts a force of ⟨160, 0, 320⟩ N.

**Questions:**

1. How much work does Jack do?
   - \( W_{\text{Jack}} = \) [_______] J

2. How much work does Jill do?
   - \( W_{\text{Jill}} = \) [_______] J

3. Which person exerted a force perpendicular to the displacement of the boat?
   - \( \circ \) Jack
   - \( \circ \) Jill
   - \( \circ \) neither Jack nor Jill
   - \( \circ \) both Jack and Jill

4. What is the final speed of the boat?
   - \( v_f = \) [_______] m/s
Transcribed Image Text:Jack and Jill are maneuvering a 3200 kg boat near a dock. Initially, the boat's position is ⟨2, 0, 3⟩ meters and its speed is 1.5 m/s. As the boat moves to position ⟨6, 0, 1⟩ meters, Jack exerts a force of ⟨-400, 0, 200⟩ N, and Jill exerts a force of ⟨160, 0, 320⟩ N. **Questions:** 1. How much work does Jack do? - \( W_{\text{Jack}} = \) [_______] J 2. How much work does Jill do? - \( W_{\text{Jill}} = \) [_______] J 3. Which person exerted a force perpendicular to the displacement of the boat? - \( \circ \) Jack - \( \circ \) Jill - \( \circ \) neither Jack nor Jill - \( \circ \) both Jack and Jill 4. What is the final speed of the boat? - \( v_f = \) [_______] m/s
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