TB_chapter3 - Chapter 3, Vectors and Two-Dimensional Motion...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
Chapter 3, Vectors and Two-Dimensional Motion C HAPTER 3 Conceptual Problems 1. Vectors A , B , and C have magnitudes 6, 11, and 20. When these vectors are added, what is the least possible magnitude of their resultant? a. 25 b. 15 c. 2 d. 3 2. Four vectors all have the same magnitude. Vector 1 is at 30 ° , Vector 2 is at 135 ° , vector 3 is at 240 ° , and Vector 4 is at 315 ° . Which vector has the greatest magnitude x-component and which vector has the greatest magnitude y-component? a. Vector 1, Vector 2 b. Vector 3, Vector 4 c. Vector 1, Vector 3 d. Vector 3, Vector 2 3. Vector 1 is 7 units long and is at 70 ° . Vector 2 is 5 units long and is at 225 ° . Vector 3 is 3 units long and is at 150 ° . Which vector has equal magnitude components? a. Vector 1 b. Vector 2 c. Vector 3 d. None of the vectors has equal magnitude components. 4. A particle moves east at constant velocity v for a time interval T. It then moves north at a Δ constant velocity, with the same speed as before, for another time interval T. Finally it Δ moves east again with the original velocity. At the instant an additional time interval T has Δ elapsed, which of the following are true about the average velocity and the average acceleration for the motion described? a. The average velocity is v and the average acceleration is zero. b. The average velocity is v and the average acceleration is not zero. c. The average velocity is not v and the average acceleration is zero. d. The average velocity is not v and the average acceleration is not zero. 5. A projectile is fired at an angle of elevation of 60 ° . Neglecting air resistance, what are possible angles in flight between the acceleration vector and the velocity vector? a. 160 ° and 40 ° b. 20 ° and 70 ° c. 90 ° and 60 ° d. none of the above 26
Background image of page 1

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

View Full DocumentRight Arrow Icon
3.1 Vectors and Their Properties 1. Which type of quantity is characterized by both magnitude and direction? a. scalar b. vector c. trigonometric d. algebraic variable 2. Which of the following is an example of a vector quantity? a. velocity b. temperature c. volume d. mass 3. When we subtract a velocity vector from another velocity vector, the result is: a. another velocity. b. an acceleration. c. a displacement. d. a scalar. 4. When we add a displacement vector to another displacement vector, the result is: a. a velocity. b. an acceleration. c. another displacement. d. a scalar. 5. A student adds two vectors with magnitudes of 200 and 40. Which one of the following is the only possible choice for the magnitude of the resultant? a. 100 b. 200 c. 260 d. 40 6. Vector A points north and vector B points east. If C = B A , then vector C points: a. north of east. b. south of east.
Background image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 01/06/2012 for the course PHYS 201 taught by Professor Coffin during the Spring '09 term at Oregon State.

Page1 / 15

TB_chapter3 - Chapter 3, Vectors and Two-Dimensional Motion...

This preview shows document pages 1 - 3. Sign up to view the full document.

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