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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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
Transcribed Image Text: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
Transcribed Image Text: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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