A pencil ladder, represented in the diagram at left, is a compact ladder
1 answer:
Answer:
About 10 feet
Step-by-step explanation:
Since I'm assuming you need to find the height of the supporting wall, I recommend drawing a diagram to help you better visualize what it would look like, like in the attached diagram. You'll see that it forms a triangle, with leg lengths 4.5 and x and a hypotenuse length 11. Use the Pythagorean Theorem to find the height of the supporting wall.
Hope this helps!
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The vector ab has a magnitude of 20 units and is parallel to the
vector 4i + 3j. Hence, The vector AB is 16i + 12j.
<h3>How to find the vector?</h3>If we have given a vector v of initial point A and terminal point B
v = ai + bj
then the components form as;
AB = xi + yj
Here, xi and yj are the components of the vector.
Given;
The vector ab has a magnitude of 20 units and is parallel to the
vector 4i + 3j.
magnitude
Unit vector in direction of resultant = (4i + 3j) / 5
Vector of magnitude 20 unit in direction of the resultant
= 20 x (4i + 3j) / 5
= 4 x (4i + 3j)
= 16i + 12j
Hence, The vector AB is 16i + 12j.
Learn more about vectors;
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