Precalc Vectors

Find the resultant vector.

• <9, 15>

• <7, 17>

• <15, 9>

• <11, 13>

Determine the components of the vector: magnitude= 12 and direction= 125 degrees

• < -9.9, 6.9 >

• < 9.9, -6.9 >

• < -6.9, 9.8 >

• < 6.9, -9.8 >

Given vector x, which color indicates the correct directional angle for the vector.

• red

• blue

• green

• none of the above

Given vectors u and v, find u+v

• Cannot be determined

An airplane flying due south (270°)  485 mph against a 25 mph wind blowing due west(180°). Determine the new speed and direction of the plane.

• Direction 267.0°
  Magnitude 485.6mph

• Direction 93.0°
  Magnitude 485.6mph

• Direction 237.0°
  Magnitude 485.6mph

• Direction 87.0°
  Magnitude 510.0mph

State whether the quantity is a vector quantity or scalar quantity.

• Vector

• Scalar

State whether the quantity is a vector quantity or scalar quantity.

• Vector

• Scalar

Determine the magnitude and direction of the resultant.

18 newtons (N) directly forward and then 20 newtons directly backward.

• 2 N backward

• 38 N forward

• -2 N backward

• 38 N backward

Determine the magnitude and direction of the resultant.

17 miles east and then 16 miles south

For a field goal attempt, a football is kicked with the velocity shown in the diagram. Find the magnitude of the horizontal and vertical components.

• 23 ft/s; 40.2 ft/s

• 77.9 ft/s; 45 ft/s

• 55 ft/s; 82.2 ft/s

• 88.2 ft/s; 49 ft/s