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AleksAgata [21]
3 years ago
9

Find the angle between the vectors |A+B|=|A-B|​

Physics
1 answer:
MA_775_DIABLO [31]3 years ago
5 0

Answer:

90 degrees

Explanation:

In the attached image we can see, the condition where this condition (|A+B|=|A-B|​) is true.

vector A is pointing horizontally to the right, vector B (positive), points up vertically.

Now analyzing the subtraction of vectors A and B = A - B, we have that vector A continues to point to the right (positive) and vector B points down (negative). In this way the magnitudes of both operations sum and subtraction of vectors is equal.

But the angle between the two vectors (A and B) will remain the same and will be 90°.

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An 800 N box is pushed across a level floor for a distance of 5.0 m with a force of 400 N. How much work was done on this box.
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Answer: 2000 J.

Explanation: Since work is force*displacement, we just have to multiply the force by the distance: w = f*d = 400 N*5.0 m = 2000 J.

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2 years ago
What is the average speed of a race car that moved 20 kilometers in 10 minutes?
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Answer:21

Explanation:every body said

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Weightlessness is experienced by an astronaut in space. This means that the astronaut's muscles have to be stronger to move his
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How is it possible to get three precise but inaccurate measurements of the same volume of water
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8 0
2 years ago
A rocket fires two engines simultaneously. One produces a thrust of 725Ndirectly forward while the other gives a 513N thrust at
faust18 [17]

The magnitude of the resultant force, F = 1,190.3 acting at a direction X = 13.35°.

<h3>What is the resultant force the two engines exert on the rocket?</h3>

The resultant force on the rocket is calculated thus:

The 513N thrust is resolved into vertical and horizontal components;

Horizontal component: 513N cos(32.4°) = 433.14 N

Vertical component: 513N sin(32.4°) = 274.88 N

Total forward force on the rocket = 725 N + 433.14 N = 1,158.14 N

Total force at right angles:

0 + 274.88 N = 274.88 N

The resultant force (F) is then given as follows:

F² = a² + b²

F² = (1158.14 N)² + (274.88 N)²

F = √1,416,847.27

F = 1,190.3

To find the direction:

tan X 274.88 N / 1,158.14 N

X = tan⁻¹ 0.237346089419241

X = 13.35°

Therefore, the magnitude of the resultant force, F = 1,190.3 acting at a direction X = 13.35°.

In conclusion, the resultant force is obtained by resolving the forces into vertical and horizontal components.

Learn more about resultant force at: brainly.com/question/17434363

#SPJ1

8 0
1 year ago
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