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Ipatiy [6.2K]
3 years ago
7

What is the length of the y-component of the vector shown below? A. 77.3 B. 15.0 C. 20.7 D. 21.4

Mathematics
1 answer:
Black_prince [1.1K]3 years ago
6 0

Answer:

y = 20.7

Step-by-step explanation:

Given

The figure above

Required

Calculate the y component

Represent the y component with y, the resultant vector with s and the angle with \theta

The y component of a vector (as it is, in this case) is calculated as thus;

sin\theta = \frac{y}{s}

Where\ \theta = 15\\ s = 80

Substituting these values in the equation

sin\theta = \frac{y}{s} becomes

sin\ 15= \frac{y}{80}

Multiply both sides by 80

80 * sin\ 15= \frac{y}{80} * 80

80 * sin\ 15= y

80 * 0.2588190451= y

20.705523608 = y

y = 20.705523608

y = 20.7 (Approximated)

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