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2 years ago

What is the momentum of each hockey player? Hockey player 1 has a mass of 65 kg and a velocity of 3.8 m/s

Mathematics

1 answer:

DaniilM [7]2 years ago

6 0

Answer:

Momentum of hocking player $1:$ $247\ kg\ m/s$

Hockey player $2:$ $=249.4\ kg\ m/s$

Step-by-step explanation:

For first hockey player :

Given that

mass (m) $=65\ kg$

Velocity (v) $=3.8\ m/s$

$p=mv\................(1)$

where $p$ is momentum

put the value in equation (1)

$p=65\times3.8\\\\p=247kg\times m/s$

For second hockey player :

Given that

mass (m) $=58\ kg$

velocity (v) $=4.3\ m/s$

$p=mv\ ...............(2)$

Where $p$ is momentum

put the value in equation (2)

$p=58\times4.3\\p=249.4\ kg\times m/s$

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2 years ago

Find the standard form of the equation of the ellipse with the given characteristics. Vertices: (4, 0), (4, 14); endpoints of th

saul85 [17]

Answer:

The standard form of the ellipse is $\frac{(x-4)^{2}}{9} + \frac{(y-7)^{2}}{49} = 1$ .

Step-by-step explanation:

The major axis of the ellipse is located in the y axis, whereas the minor axis is in the x axis. The center of the ellipse is the midpoint of the line segment between vertices, this is:

$(h, k) =\frac{1}{2}\cdot V_{1} (x,y) + \frac{1}{2}\cdot V_{2} (x,y)$ (1)

If we know that $V_{1} (x,y) = (4,0)$ and $V_{2}(x,y) = (4, 14)$ , then the coordinates of the center are, respectively:

$(h,k) = \frac{1}{2}\cdot (4, 0) + \frac{1}{2}\cdot (4,14)$

$(h,k) = (2,0) + (2, 7)$

$(h, k) = (4, 7)$

The length of each semiaxis is, respectively:

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$a = 3$

$b = \sqrt{(4-4)^{2}+(0-7)^{2}}$

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The standard equation of the ellipse is described by the following formula:

$\frac{(x-h)^{2}}{a^{2}}+ \frac{(y-k)^{2}}{b^{2}} = 1$

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If we know that $h = 4$ , $k = 7$ , $a = 3$ and $b = 7$ , then the standard form of the ellipse is:

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2 years ago

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xz_007 [3.2K]

Since my name is in this question, I'll answer it :)

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Yes, she's right.

Step-by-step explanation:

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2 years ago

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Answer:

Step-by-step explanation:

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2 years ago

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slamgirl [31]

Answer:

Step-by-step explanation:

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2 years ago