Quiz
Vectors Pretest
Questions in this quiz (5)
1A vector is given by its components, \(A_{x} = 2.5\) and \(A_{y} = 7.5\). What angle does vector \(\mathbf{A}\) make with the positive x-axis?
- A\(72^{0}\)
- B\(18^{0}\)
- C\(25^{0}\)
- D\(50^{0}\)
2Which pair of vectors could produce a resultant of 35?
- A15 and 15
- B20 and 20
- C30 and 70
- D20 and 60
3As the angle between a given vector and the horizontal axis increases from \(0^{0}\) to\( 90^{0}\), the magnitude of the vertical component of this vector
- Adecreases
- Bincreases and then decreases
- Cdecreases and then increases
- Dincreases
4Vector \( \mathbf{A}\) has a magnitude of 10 units and makes and angle of \(30^{0}\) with the horizongal x-axis. Vector \(\mathbf{B}\) has a magnitude of 25 units and makes an angle of \(50^{0}\) with the negative x-axis. What is the magnitude of the resultant between these two vectors?
- A20
- B35
- C15
- D25
5Three forces act concurrently on a point P as shown below. Which vector represents the direction of the resultant force on point P?
- A
- B
- C
- D
- A
Information
- Description
- Knowledge pretest on vector arithmetic for Physics II
- Author
- DC PC
- Language
- English
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