A straight river flows east at a speed of 8 mi/h. A boater starts at the south shore of the river and heads in a direction 60° from the shore (see the figure). The motorboat has a speed of 24 mi/h relative to the water. (Assume that the i vector points east, and the j vector points north.) AN 60° (a) Express the velocity of the river as a vector in component form. (b) Express the velocity of the motorboat relative to the water as a vector in component form. (Round your answer to two decimal places.) (c) Find the true velocity of the motorboat. (Round your answer to two decimal places.) (d) Find the true speed of the motorboat. (Round your answer to one decimal place.) mi/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
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**Problem Statement:**

A straight river flows east at a speed of 8 mi/h. A boater starts at the south shore of the river and heads in a direction 60° from the shore (see the figure). The motorboat has a speed of 24 mi/h relative to the water. (Assume that the i vector points east, and the j vector points north.)

**Diagram Explanation:**

The diagram shows a river with the direction of the flow marked eastward as a horizontal line. A boat is depicted heading in a direction 60° from the shore, represented by a diagonal line at an angle of 60° from the horizontal line representing east. 

**Questions:**

(a) Express the velocity of the river as a vector in component form.

[Box for answer]

(b) Express the velocity of the motorboat relative to the water as a vector in component form. (Round your answer to two decimal places.)

[Box for answer]

(c) Find the true velocity of the motorboat. (Round your answer to two decimal places.)

[Box for answer]

(d) Find the true speed of the motorboat. (Round your answer to one decimal place.)

[Box for answer] mi/h

Find the direction of the motorboat. (Round your answer to one decimal place.)

N [Box for answer] ° E
Transcribed Image Text:**Problem Statement:** A straight river flows east at a speed of 8 mi/h. A boater starts at the south shore of the river and heads in a direction 60° from the shore (see the figure). The motorboat has a speed of 24 mi/h relative to the water. (Assume that the i vector points east, and the j vector points north.) **Diagram Explanation:** The diagram shows a river with the direction of the flow marked eastward as a horizontal line. A boat is depicted heading in a direction 60° from the shore, represented by a diagonal line at an angle of 60° from the horizontal line representing east. **Questions:** (a) Express the velocity of the river as a vector in component form. [Box for answer] (b) Express the velocity of the motorboat relative to the water as a vector in component form. (Round your answer to two decimal places.) [Box for answer] (c) Find the true velocity of the motorboat. (Round your answer to two decimal places.) [Box for answer] (d) Find the true speed of the motorboat. (Round your answer to one decimal place.) [Box for answer] mi/h Find the direction of the motorboat. (Round your answer to one decimal place.) N [Box for answer] ° E
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