Answered: A boat is traveling upstream at 12 km/h…

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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Question

A boat is traveling upstream at 12 km/h with respect to the water of a river. The water is flowing at 8.0 km/h with respect to the ground. What are the (a) magnitude and (b) direction of the boat’s velocity with respect to the ground? A child on the boat walks from front to rear at 5.0 km/h with respect to the boat.What are the (c) magnitude and (d) direction of the child’s velocity with respect to the ground?

Expert Solution

Step 1 Solution of part A

The velocity of the boat with respect to the ground

$v_{b g} = v_{b r} + v_{r g} = 12 i - 8 i = 4 i$

The magnitude fo velocity is

$v_{b g} = 4 k m / h r$

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