# Homework 3, 2d motion 20-21-solutions.pdf - johnson(kmj2853...

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johnson (kmj2853) – Homework 3, 2d motion 20-21 – dowd – (HailemariamAPHY1 2) 1 This print-out should have 22 questions. Multiple-choice questions may continue on the next column or page – find all choices before answering. 001(part1of2)10.0points Express the vector vector R A B C D P R in terms of vector A , vector B , vector C , and vector D , the edges of a parallelogram. 1. vector R = vector B + vector A correct 2. vector R = vector B + vector D vector P = vector C + vector D 4. vector P = vector C + vector B 5. vector P = vector B + vector A 6. vector P = vector D - vector A 7. vector P = vector B - vector A 8. vector P = vector B + vector D 9. vector P = vector A + vector D 10. vector P = vector A - vector D 3. vector R = vector B - vector A 4. vector R = vector C + vector B 3. vector P = vector C + vector D 4. vector P = vector C + vector B 5. vector P = vector B + vector A 6. vector P = vector D - vector A 7. vector P = vector B - vector A 8. vector P = vector B + vector D 9. vector P = vector A + vector D 10. vector P = vector A - vector D
5. vector R = vector A - vector D 10.0points Vector vector B has x , y , and z components of 3 . 3, 8 . 7, and 9 . 4 units, respectively. Calculate the magnitude of vector B . 6. vector R = vector A + vector D 7. vector R = vector C + vector D 8. vector R = vector A - vector B 003 10.0points Vector vector B has x , y , and z components of 3 . 3, 8 . 7, and 9 . 4 units, respectively. Calculate the magnitude of vector B .
10. vector R = vector D - vector A
002(part2of2)10.0points For the vector vector B = B x ˆ ı + B y ˆ + B z ˆ k .
Express the vector vector P in terms of vector A , vector B , vector C , and vector D , 1. vector P = vector C - vector A 2. vector P = vector A - vector B correct 004 10.0points Vectors vector A , vector B , vector C , vector D , and vector E are shown in the figure. For convenience, the tails of each vector are arbitrarily located at (0,0).
johnson (kmj2853) – Homework 3, 2d motion 20-21 – dowd – (HailemariamAPHY1 2) 2 y - 5 - 3 - 1 0 1 2 3 4 5 x - 5 - 4 - 3 - 2 - 1 0 1 2 3 4 5 A B C D E 3. y - 5 - 3 - 1 0 1 2 3 4 5 x - 5 - 4 - 3 - 2 - 1 0 1 2 3 4 5 R
005 10.0points Two airplanes leave an airport at the same time. The velocity of the first airplane is 660 m / h at a heading of 12 . 3 . The velocity of the second is 580 m / h at a heading of 148 . How far apart are they after 3 . 3 h?