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1 year ago

Find the x-component of this

Physics

1 answer:

valentina_108 [34]1 year ago

4 0

The x-component of this vector inclined from the horizontal axis is 15m.

<h3>What is vector?</h3>

A vector is the representation of a physical quantity in magnitude and direction.

A vector incline at an angle in has two components. On in x direction and other is in y direction.

For the given length of vector = 45.6 m and the angle of inclination from the +x axis θ = 70.8°

The x component of the given vector is

= 45.6cos 70.8°

= 14.99 m

Thus, the x- component of this vector is 15m.

Learn more about vector.

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A force F produces an acceleration a on an object of mass m. A force 3F is exerted on a second object, and an acceleration 8a re

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3 years ago

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Answer:

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(The complete question is given in the attached picture. We need to find the acceleration in terms of h and t in this question)

We are given 3 stages of movement of elevator. We'll first model them each of the stage one by one to find the height covered in each stage. After that we'll find the total height covered by adding heights covered in each stage, and equate it to Total height h. From that we can find the formula for acceleration.

<h3></h3><h3>Stage 1</h3>

Constant acceleration, starts from rest.

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<h3>Stage 2</h3>

Constant velocity where

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Distance =

<h3> $y_2=v_2(t_2)\\\text{Where~}t_2=4t_1 ~\text{and}~ v_2=v_1=at_1\\y_2=(at_1)(4t_1)\\y_2=4a(t_1)^2\\$ </h3><h3 /><h3>Stage 3</h3>

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$y_3=v_1t_3-\frac{1}{2}a(t_3)^2\\\text{Where}~t_3=t_1\\y_3=v_1t_1-\frac{1}{2}a(t_1)^2\\\text{Where}~ v_1t_1=a(t_1)^2\\y_3=a(t_1)^2-\frac{1}{2}a(t_1)^2\\\text{Subtracting both terms:}\\y_3=\frac{1}{2}a(t_1)^2$