Physics, 03.10.2019 05:30 celsa86johana

Definition: -this is the shape of the two-dimensional path followed by a projectile.

example: this is seen in basketball shots, cannonball firings, and rocket launchings.

hint: pa

Definition: -this is the shape of the two-dimensional path followed by a projectile. ex

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Answer from: jacobbrandon2002

The shape of this path is known as a parabola.

Assumptions: there's no air resistance, and that gravitational pull is constant.

Explanation:

The motion of a projectile can be considered in two separate directions:

In the vertical direction perpendicular to the ground, andIn the horizontal direction parallel to the ground.

In the vertical direction, the projectile would accelerating downwards at a constant rate. (That rate is equal to $g =\rm 9.81\;m\cdot s^{-2}$ near the surface of the earth.) If $v_{y,0}$ is the initial velocity of the projectile in the vertical direction, the height of the projectile at time would equal

$\displaystyle y(t) = \frac{1}{2} g\cdot t^{2} + v_{y,0} \cdot t$ .

In the horizontal direction, the rocket travels at a constant speed. If v_x is the initial horizontal velocity of the rocket, the horizontal position of the rocket at time would be

$x(t) = v_x \cdot t$ .

Keep in mind that the two-dimensional path of the rocket is more like a function of height over horizontal position , rather than a function of height at time . The goal is to find y(x) , an expression of height in terms of horizontal position .

The relationship between and was already determined. Try expressing using with the help of the second equation.

$x = v_x \cdot t$ .

$\displaystyle t = \frac{x}{v_x}$ .

Replace all occurances of the variable in the expression of using $\displaystyle \frac{x}{v_x}$ .

$\begin{aligned} y &= \frac{1}{2}\cdot \left(\frac{x}{v_x}\right)^{2} + v_{y, 0} \cdot \frac{x}{v_x}\\&= \frac{1}{2v_x}\cdot x^{2} + \frac{v_{y, 0}}{v_x}\cdot x\end{aligned}$ .

Answer from: Quest

i dont think you are wrong for wanting to get even with someone who did you wrong.

(i'm an eye for an eye kind of person) but if this person hurt you in a sexual way, i dont suggest doing anything to him. he should be taken to the proper authorities, you could go to jail depending on what you do. if it was something small like your sibling took your spot on the couch, than yea, i would get even with him by taking one of his favorite snacks lol. but i dont suggest you doing anything illegal.

Answer from: Quest

r = ρ x length / area

ρ = r x area / length

ρ is in ohm-meters

in basic units, it is m³kg/s³a²

i think this is it.

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Definition: -this is the shape of the two-dimensional path followed by a projectile.

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