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Quiz

Physics vectors and two dimensions

Apurva Singh 13 Fragen

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Fragen in diesem Quiz (13)

  1. 1The press box at a baseball park is 38.0 ft above the ground. A reporter in the press box looks at an angle of 15 degrees below the horizontal to see second base. What is the horizontal distance from the press box to second base?
    1. A142 ft
    2. B50 ft
    3. C107 ft
    4. D98 ft
  2. 2A road that rises 1ft for every 100 ft traveled horizontally is said to have a 1 percent grade. Portions of the Lewiston grade, near Lewiston, Idaho, have a 6 percent grade. At what angle is this road inclined above the horizontal?
    1. A4 degrees
    2. B9 degrees
    3. C6 degrees
    4. D3 degrees
  3. 3A baseball diamond is a square with sides 90ft in length. If the positive x axis points from home plate to first base, and the positive y-axis point from home to third base, find the displacement vector of a base runner who just hit a) double, b) triple, c) home run.
    1. A90ftx + 85fty; 85ftx; 0ftxy
    2. B90ftx + 90fty; 90fty; 0ftxy
  4. 4Vector A has a magnitude of 50 units and points to the positive x direction. A second vector, B, has a magnitude of 120 units and points at an angle of 70 degrees below the x axis. Which vector has a) the greater x component and b) the greater y component?
    1. AA,B
    2. BB,A
    3. CA,A
    4. DB,B
  5. 5An air traffic controller observes two airplanes approaching the airport. The displacement from the control tower to plane 1 is given by the vector A, which has a magnitude of 220km and points in a direction 32 degrees north of west. The displacement from the control tower to plane 2 is given by the vector b, which has a magnitude of 140km and points 65 degrees east of north. a) sketch the vectors a, -b, d = a -b. Notice that d is the displacement from plane 2 to plane 1. b) find the magnitude and direction of the vector d.
    1. A325 km, 20 degrees n of w
    2. B320 km, 10 degrees n of w
    3. C315 km, 10 degrees n of w
  6. 6Vector A points in the negative, x direction and has a magnitude of five units. VectorB has twice the magnitude and points to the positive x direction =. Find the direction and magnitude of a) A + B b) A - B, c) B - A.
    1. A-27 degrees, 11 units; 207 degrees, 11 units; 27 degrees, 11 units
    2. B72 degrees, 11 units; -207 degrees, 11 units; -72 degrees, 11 units
  7. 7A vector A has a length of 6.1 m and points in the negative x direction. Find the x component and the magnitude of the vector -3.7A.
    1. A23m, 23m
    2. B27m, 27m
    3. C23m, 27m
  8. 8What is the direction and magnitude of your total displacement if you have traveled due west with as speed of 27 m/s for 130s, then due south at 14 m/s for 62 s?
    1. A15 degrees n of s, 4.2 km
    2. B14 degrees s of w, 3.6 km
  9. 9A jogger runs with a speed of 3.25 m/s in a direction 30 degrees above the x-axis. Find the x and y components and how will the velocity components change if the jogger's speed is halved?
    1. A2.81 m/s and 1.63 m/s, the components will be halved
    2. B2.76 m/s, and 1.74 m/s, the components will be doubled
  10. 10As an airplane taxies on the runway with a speed of 16.5 m/s, a flight attendant walks toward the tail of the plane with a speed of 1.22 m/s. What is the flight attendant's speed relative to the ground?
    1. A1.22 m/s
    2. B.5 m/s
    3. C15.3 m/s
    4. D12 m/s

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Beschreibung
Quiz am Physics vectors and two dimensions, erstellt von Apurva Singh am 29/10/2017.
Sprache
English
Aufrufe
1
Schlagwörter
11th grade
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