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Genrish500 [490]

3 years ago

7

BRAINLIEST ANSWER

1 answer:

solmaris [256]3 years ago

7 0

Answer:

A

Explanation:

The horizontal component of the resultant vector is:

x = 18 cos 70° + 15

x = 21.2

The vertical component of the resultant vector is:

y = 18 sin 70°

y = 16.9

So the angle from the positive x-axis is:

θ = atan (y/x)

θ = atan (16.9 / 21.2)

θ = 39°

Answer is A.

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ludmilkaskok [199]

Answer:

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Explanation:

We are going to use the formula below to calculate.

$T=2\pi \sqrt{\frac{L}{g} }$

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From the problem, the rod is pivoted at 1/4L which means that three quarter of the rod was used for the oscillation. lets call this $L_{O}$

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4 years ago

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Answer:

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