AnswersPrecalculusModeling with Vector Quantities

Modeling with Vector Quantities — Test Answers

25 verified answers5 views
21
Free Preview

Let vector u with components three comma four What is 3 bold math font u ?

A
components nine comma seven
B
components with six comma twelve
C
components 9 comma 12
D
components 6 comma 7
22
Free Preview

On a Ferris wheel, Sarah observes that it takes 45 seconds for her chair to complete a full revolution. Her chair is 30 feet from the axle of the Ferris wheel.

Answer:

4 pi

23

Given transformation matrix cap t is equal to the 2 by 2 matrix, row 1, column 1, 0 column 2, negative 1 row 2, column 1, negative 1 column 2, 0 , which diagram shows the application of cap t to v ?

A
Image with description On a coordinate plane, the x-axis ranges from negative 4 to 2 in increments of 1, and the y-axis ranges from negative 4 to 2 in increments of 1. A vector v prime has origin (0, 0) and terminal point (negative 2, negative 1).
B
Image with description On a coordinate plane, the x-axis ranges from negative 4 to 2 in increments of 1, and the y-axis ranges from negative 4 to 2 in increments of 1. A vector v prime has origin (0, 0) and terminal point (negative 1, negative 2).
C
Image with description On a coordinate plane, the x-axis ranges from negative 3 to 3 in increments of 1, and the y-axis ranges from negative 3 to 3 in increments of 1. A vector v prime has origin (0, 0) and terminal point (1, 2).
D
Image with description On a coordinate plane, the x-axis ranges from negative 3 to 3 in increments of 1, and the y-axis ranges from negative 3 to 3 in increments of 1. A vector v prime has origin (0, 0) and terminal point (2, 1).
24

Given transformation matrix cap t is equal to the 2 by 2 matrix row 1, 2 0 row 2, 0 2 , which diagram shows the application of cap t to v ?

A
Image with description On a coordinate plane, the x-axis ranges from negative 3 to 7 in increments of 1, and the y-axis ranges from 1 to 9 in increments of 1. A vector v prime has origin (0, 0) and terminal point (4, 9).
B
Image with description On a coordinate plane, the x-axis ranges from negative 3 to 5 in increments of 1, and the y-axis ranges from negative 2 to 6 in increments of 1. A vector v prime has origin (0, 0) and terminal point (4, 6).
C
Image with description On a coordinate plane, the x-axis ranges from negative 2 to 6 in increments of 1, and the y-axis ranges from negative 3 to 5 in increments of 1. A vector v prime has origin (0, 0) and terminal point (6, 4).
D
Image with description On a coordinate plane, the x-axis ranges from 1 to 9 in increments of 1, and the y-axis ranges from 1 to 7 in increments of 1. A vector v prime has origin (0, 0) and terminal point (9, 4).
25

A hand glider dives at 25 mph in a direction 60 degrees below horizontal. What is the component form of the velocity vector?

A
open paren 25 halves comma the fraction with numerator 25 square root of 3 and denominator 2 close paren
B
open paren negative 25 halves comma negative the fraction with numerator 25 square root of 3 and denominator 2 close paren
C
open paren negative 25 halves comma the fraction with numerator 25 square root of 3 and denominator 2 close paren
D
open paren 25 halves comma negative the fraction with numerator 25 square root of 3 and denominator 2 close paren

Did you find these answers helpful?

More from this Course

Quiz
25 verified answers

Test

Quiz
25 verified answers

Test

Quiz
25 verified answers

Test

Modeling with Vector Quantities — Test Answers…