What is the x-component of a vector with a magnitude of 10 m/s at a 30-degree angle?

Understanding Vectors and Unit Vector Notation

Interactive Video
•
Mathematics, Physics
•
9th - 12th Grade
•
Hard

Liam Anderson
FREE Resource
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
10 sin(30°)
10 cos(30°)
10 tan(30°)
10 sec(30°)
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which trigonometric function is used to find the y-component of a vector?
Tangent
Cosine
Sine
Secant
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the purpose of unit vector notation?
To calculate vector magnitudes
To visualize vectors in 3D
To represent vectors analytically
To simplify vector multiplication
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the unit vector in the x-direction called?
l
i
k
j
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How can the vector v be expressed using unit vectors if v_x = 5√3i and v_y = 5j?
5j + 5√3j
5√3j + 5i
5√3i + 5j
5i + 5j
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the magnitude of the unit vector i?
0
1
√3
10
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How do you add two vectors using unit vector notation?
Divide their magnitudes
Multiply their magnitudes
Add their x and y components separately
Subtract their y components
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