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3 years ago

10

Projectile motion is a combination of which two types of motion?

2 answers:

klasskru [66]3 years ago

5 0

Vertical Free Fall and Constant Horizontal Motion.

Monica [59]3 years ago

3 0

The correct answer is:

Vertical Free Fall and Constant Horizontal Motion

Explanation:

A projectile proposal is a form of motion confronted by an object or particle that is started near the Earth's surface and transfers along a rounded path under the action of gravity only. The vertical force acts perpendicular to the parallel motion and will not affect it since perpendicular segments of motion are confident of each other. Thus, the projectile travels with a constant horizontal velocity and a descending vertical acceleration.

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Given: <br><br> ∆SPM, PK⊥ SM<br><br> SP = 25, SM = 28, PK = 9<br><br> Find: m∠S, m∠M, PM

nevsk [136]

Answer:

∠S = 21.10°

∠M = 79.45°

PM = 9.16

Step-by-step explanation:

Here Pythagorean theorem and trigonometry suffice to solve our problem.

From the Pythagorean theorem we get:

$KM^2+9^2=PM^2$ and

$(25-KM)^2+9^2=25^2.$

We solve for $KM$ in the second equation and get:

$(25-KM)=\sqrt{25^2-9^2}$

$\therefore KM=25-\sqrt{25^2-9^2} =\boxed{1.68}$

Now since

$SK+KM=25\\\\ SK=\boxed{23.32}$

Therefore

${\angle}S=Tan^{-1}(\frac{PK}{SK}) = Tan^{-1}(\frac{9}{23.32})=21.10^o$

and

${\angle}M=Tan^{-1}(\frac{PK}{KM}) = Tan^{-1}(\frac{9}{1.68})=79.45^o.$

And finally again from the Pythagorean theorem:

$PM^2=PK^2+KM^2=9^2+1.68^2$

$\therefore PM=\sqrt{9^2+1.68^2} =9.16.$

Thus,

∠S = 21.10°

∠M = 79.45°

PM = 9.16.

7 0

3 years ago

I need help ASAP................................

Anestetic [448]

Answer:

x = -1

Step-by-step explanation:

-2(x - 5) = 12

-2x + 10 = 12 (this is the mistake, -2 times -5 = + 10)

-2x = 12 - 10

-2x = 2

x = 2/(-2)

x = -1

8 0

2 years ago

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Find the equation in slope intercept form (2,5)(0,5)

Dima020 [189]

Answer:

y = 5

Step-by-step explanation:

slope = Δy / Δx = (5 - 5) / (0 - 2) = 0

y = Ax + B

y = 0x + 5

4 0

2 years ago

The triangle angle sum property states that the measures of the 3 angles of any triangle must add to 360 degrees.

serg [7]

Answer: False

Step-by-step explanation:

Triangle is a polygon with 3 sides. The formula for calculating the sum of angle in a polygon is given as :

$(n-2)180$

where n is the number of sides , so to calculate the sum of angles in a triangle we have :

$(3-2) 180$

= 1 x 180

= 180

Therefore : The triangle angle sum property states that the measures of the 3 angles of any triangle must add to 180 degrees.

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2 years ago

In the figure, the area of the shaded region is 224π cm^2.

Anna007 [38]

I think the answer is 7 if i am not mistaking

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2 years ago

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