ict01 - Version 024/AABCA – ict 01 – Turner –(92510 1...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: Version 024/AABCA – ict 01 – Turner – (92510) 1 This print-out should have 3 questions. Multiple-choice questions may continue on the next column or page – find all choices before answering. 001 10.0 points Four vectors, each of magnitude 29 m, lie along the sides of a parallelogram as shown in the figure. The angle between vector A and B is 69 ◦ . A 2 9 m C 29 m B 29 m D 2 9 m 69 ◦ What is the magnitude of the vector sum of the four vectors? 1. 190.043 2. 95.5986 3. 157.13 4. 245.941 5. 141.307 6. 305.747 7. 107.387 8. 267.436 9. 248.687 10. 87.0356 Correct answer: 95 . 5986 m. Explanation: Let : α = 69 ◦ and ℓ = 29 m . The vectors are vector B = vector C = ℓ ˆ ı and vector A = vector D = ( ℓ cos α ) ˆ ı + ( ℓ sin α ) ˆ , so vector A + vector B + vector C + vector D = 2 ℓ (1 + cos α )ˆ ı + 2 ℓ sin α ˆ = 2 (29 m) (1 + cos 69 ◦ ) ˆ ı + 2 (29 m) sin69 ◦ ˆ = (78 . 7853 m) ˆ ı + (54 . 1477 m) ˆ , and R = radicalBig (78 . 7853 m)...
View Full Document

{[ snackBarMessage ]}

Page1 / 2

ict01 - Version 024/AABCA – ict 01 – Turner –(92510 1...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online