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Pavlova-9 [17]
3 years ago
8

Un caballo tira de una argolla, hacia el Norte con una fuerza de 2000 N, y otro hacia el Este con una F de 3000 N. Con que F ha

de tirar un tercer caballo y hacia dónde para que la argolla quede en equilibrio.

Physics
1 answer:
Nonamiya [84]3 years ago
6 0

Answer:

One horse pulls a ring to the north with a force of 2000 N, and another to the east with an F of 3000 N. With which F has to pull a third horse and where to so that the ring is in balance.

Explanation:

Given that, a horse pulls a ring to the north with a force of 2000N

F_1 = 2000 •j

Another horse pull in the east ward direction with a force of 3000N

F_2 = 3000 •i

A third horse that balanced the system force and direction.

F_3 = ?

Using equilibrium principle, the sum of acting on the ring is 0N

Then,

F_1 + F_2 + F_3 = 0

F_3 = -F_1 - F_2

F_3 = -2000•j - 3000•i

F_3 = -3000•i - 2000•j

Then,

The magnitude of the force is

|F_3| = √(-2000)² + (-3000)²

|F_3| = √(4,000,000 + 9,000,000)

|F_3| = √13,0000,000

|F_3| = 3605.55 N,

That is the magnitude of the third horse

Then, it's direction can be calculated using

tan θ = (y / x)

θ = arctan(y/x)

θ = arctan(-2000/-3000)

θ = 33.69°

But this is in the third quadrant because the both direction of x and y is negative.

Then, the direction is W33.69°S

Or total angle is 180 + θ = 180 + 33.69

Direction = 213.69°

In Spanish

Dado eso, un caballo tira de un anillo hacia el norte con una fuerza de 2000N

F_1 = 2000 • j

Otro tirón de caballos en dirección al barrio este con una fuerza de 3000N

F_2 = 3000 • i

Un tercer caballo que equilibraba la fuerza y ​​dirección del sistema.

F_3 =?

Usando el principio de equilibrio, la suma de actuar en el anillo es 0N

Entonces,

F_1 + F_2 + F_3 = 0

F_3 = -F_1 - F_2

F_3 = -2000 • j - 3000 • i

F_3 = -3000 • i - 2000 • j

Entonces,

La magnitud de la fuerza es

| F_3 | = √ (-2000) ² + (-3000) ²

| F_3 | = √ (4,000,000 + 9,000,000)

| F_3 | = √13,0000,000

| F_3 | = 3605.55 N,

Esa es la magnitud del tercer caballo.

Entonces, su dirección se puede calcular usando

tan θ = (y / x)

θ = arctan (y / x)

θ = arctan (-2000 / -3000)

θ = 33.69 °

Pero esto está en el tercer cuadrante porque ambas direcciones de x e y son negativas.

Entonces, la dirección es W33.69 ° S

O el ángulo total es 180 + θ = 180 + 33.69

Dirección = 213.69 °

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ololo11 [35]

Answer:

170N

Explanation:

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4 0
3 years ago
A 225-g object is attached to a spring that has a force constant of 74.5 N/m. The object is pulled 6.25 cm to the right of equil
snow_lady [41]

Answer:

1.137278672 m/s

+5.9 cm or -5.9 cm

Explanation:

A = Amplitude = 6.25 cm

m = Mass of object = 225 g

k = Spring constant = 74.5 N/m

Maximum speed is given by

v_m=A\omega\\\Rightarrow v_m=A\sqrt{\dfrac{k}{m}}\\\Rightarrow v_m=6.25\times 10^{-2}\times \sqrt{\dfrac{74.5}{0.225}}\\\Rightarrow v_m=1.137278672\ m/s

The maximum speed of the object is 1.137278672 m/s

Velocity is at any instant is given by

\dfrac{v_m}{3}=\omega\sqrt{A^2-x^2}\\\Rightarrow \dfrac{A\omega}{3}=\omega\sqrt{A^2-x^2}\\\Rightarrow \dfrac{A}{3}=\sqrt{A^2-x^2}\\\Rightarrow \dfrac{A^2}{9}=A^2-x^2\\\Rightarrow A^2-\dfrac{A^2}{9}=x^2\\\Rightarrow x^2=\dfrac{8}{9}A^2\\\Rightarrow x=A\sqrt{\dfrac{8}{9}}\\\Rightarrow x=6.25\times 10^{-2}\sqrt{\dfrac{8}{9}}\\\Rightarrow x=\pm 0.0589255650989\ m

The locations are +5.9 cm or -5.9 cm

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2 years ago
An object moves in one dimension according to the function x(t)=13at3, where a is a positive constant with units of ms3. During
9966 [12]

Answer:

B) 1/5 ba^2 T^5

Explanation:

The dissipated energy is given by the work done over the object by the force F=-bv. The work is given by the following formula:

dW=Fdx

you derivative the function f(x) and replace v by the derivative dx/dt you obtain:

v=\frac{dx}{dt}=at^2\\\\dx=at^2dt\\\\W=\int_0^{T} Fdx=-\int_0^Tvbdx=-\int_0^Tb(at^2)(at^2dt)\\\\W=-ba^2\frac{T^5}{5}=-\frac{1}{5}ba^2T^5

hence, the dissipated energy is 1/5 ba^2 T^5

7 0
3 years ago
What total energy (in J) is stored in the capacitors in the figure below (C1 = 0.900 µF, C2 = 16.0 µF) if 1.80 10-4 J is stored
Musya8 [376]

The total energy  stored in the capacitors is determined as  2.41 x 10⁻⁴ J.

<h3>What is the potential difference of the circuit?</h3>

The potential difference of the circuit is calculated as follows;

U = ¹/₂CV²

where;

  • C is capacitance of the capacitor
  • V is the potential difference

For a parallel circuit the voltage in the circuit is always the same.

The energy stored in 2.5 μf capacitor is known, hence the potential difference of the circuit is calculated as follows;

U = ¹/₂CV²

2U = CV²

V = √2U/C

V = √(2 x 1.8 x 10⁻⁴ / 2.5 x 10⁻⁶)

V = 12 V

The equivalent capacitance of C1 and C2 is calculated as follows;

1/C = 1/C₁ + 1/C₂

1/C = (1)/(0.9 x 10⁻⁶)  +  (1)/(16 x 10⁻⁶)

1/C = 1,173,611.11

C = 1/1,173,611.11

C = 8.52 x 10⁻⁷ C

The total capacitance of the circuit is calculated as follows;

Ct = 8.52 x 10⁻⁷ C   +   2.5 x 10⁻⁶ C

Ct = 3.35 x 10⁻⁶ C

The total energy of the circuit is calculated as follows;

U =  ¹/₂CtV²

U =  ¹/₂(3.35 x 10⁻⁶ )(12)²

U = 2.41 x 10⁻⁴ J

Learn more about energy stored in a capacitor here: brainly.com/question/14811408

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7 0
1 year ago
20 POINTS.
ololo11 [35]

Answer:

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