For vectors B = -2î - 8j and A = -6î – 4j, calculate the following. (a) A + B (Express your answer in vector form.) A + B = Enter the magnitude and direction (in degrees counterclockwise from the +x-axis) for A + B. magnitude direction ° counterclockwise from the +x-axis (b) A - B (Express your answer in vector form.) A - B = Enter the magnitude and direction (in degrees counterclockwise from the +x-axis) for A - B. magnitude direction ° counterclockwise from the +x-axis

For vectors B = -2î - 8j and A = -6î – 4j, calculate the following. (a) A + B (Express your answer in vector form.) A + B = Enter the magnitude and direction (in degrees counterclockwise from the +x-axis) for A + B. magnitude direction ° counterclockwise from the +x-axis (b) A - B (Express your answer in vector form.) A - B = Enter the magnitude and direction (in degrees counterclockwise from the +x-axis) for A - B. magnitude direction ° counterclockwise from the +x-axis

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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Scalars and Vectors

Scalars and Vectors are the classification of physical quantities that are used to denote various terms in physics.

Question

For vectors B =
-2î - 8j and A = -6î – 4j, calculate the following.
(a) A + B (Express your answer in vector form.)
A + B =
Enter the magnitude and direction (in degrees counterclockwise from the +x-axis) for A + B.
magnitude
direction
° counterclockwise from the +x-axis
(b) A - B (Express your answer in vector form.)
A - B =
Enter the magnitude and direction (in degrees counterclockwise from the +x-axis) for A - B.
magnitude
direction
° counterclockwise from the +x-axis

A cyclist rides 5.4 km east for 18 minutes, then he turns and heads west for 7 minutes and 2.1 km. Finally, he rides east for 11.4 km, which takes 38 minutes. (Assume motion toward the east is
positive. Indicate the direction with the signs of your answers.)
(a) What is the final displacement of the cyclist (in km)?
km
(b) What is his average velocity (in km/h)?
km/h

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