Understanding Resultant Vectors

What is the first step in finding the resultant vector of two force vectors?

• Multiply the magnitudes of the vectors

• Add the vectors directly

• Subtract the vectors

• Break down each vector into its component form

How do you calculate the x component of a force vector?

• Add the force to the angle

• Divide the force by cosine of the angle

• Multiply the force by cosine of the angle

• Multiply the force by sine of the angle

What is the value of cosine 30 degrees used in the calculation of f1x?

• 0.866

• 0.707

• 1.0

• 0.5

What is a unit vector?

• A vector with a magnitude of two

• A vector with a magnitude of three

• A vector with a magnitude of one

• A vector with a magnitude of zero

Why is the x component of f2 negative?

• Because it is in the first quadrant

• Because it is in the second quadrant

• Because it is in the third quadrant

• Because it is in the fourth quadrant

What is the angle relative to the positive x-axis for f2?

• 90 degrees

• 45 degrees

• 135 degrees

• 180 degrees

How do you find the resultant vector in component form?

• By dividing the components of f1 and f2

• By multiplying the components of f1 and f2

• By adding the components of f1 and f2

• By subtracting the components of f1 and f2

What formula is used to calculate the magnitude of the resultant vector?

• a^2 + b^2 = c^2

• a^2 - b^2 = c^2

• a^2 / b^2 = c^2

• a^2 * b^2 = c^2

What is the magnitude of the resultant vector calculated in the video?

• 212.1 newtons

• 173.2 newtons

• 314.5 newtons

• 100 newtons

What is the direction of the resultant vector relative to the positive x-axis?

• 135 degrees

• 97.1 degrees

• 82.9 degrees

• 45 degrees