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cestrela7 [59]
2 years ago
15

What is the resultant velocity vector when you add your swimming velocity and the current velocity? give the x and y components

in meters per second separated by a comma?

Physics
2 answers:
Pani-rosa [81]2 years ago
3 0

The resultant vector, is the vector that adds the components x and y separately.

<span>Since the two x components are 0.00 m/s and 1.00 m/s, the resultant x component will be:</span>

<span> <span>0.0   </span>m/s + 1.00 m/s = 1.00 m/s in + x direction

<span>Similarly, the y components will be:

<span>  -1.00 m/s + 0.00 m/s = -1.00 m/s in -y direction

<span><span>So, the resultant vector will be: 

<span>(1.00 m/s, -1.00 m/s)</span></span> </span></span></span></span>
MrRissso [65]2 years ago
3 0

The simultaneous vector of velocity in the form of components x and y is

1, -1 m / s

<h3>Further explanation </h3>

Vectors are quantities that have magnitude and direction

Vector can be symbolized in the form of directed line segments

One of the presentations of vector shapes is in geometric conditions where the vector components are expressed in the form of x and y coordinates which can be described in matrix form

The position vector of a vector starts from the starting point to the endpoint

Addition of two vectors is the addition of component x and component y

A (x1, y1) and B (x2, y2)

A + B = (x1 + x2, y1 + y2)

There is additional information on the problem:

a swimmer moves to the right with a speed of 1 m / s while the current from the river with the same speed down by 1 m / s (picture attached)

so the vector component position based on components x and y becomes:

swimmer (p): (1,0)

river current (s): (0, -1)

So if the two vectors are added it will become:

v = p + s

v = (1 + 0, 0-1)

v = (1, -1) m / s

<h3>Learn more </h3>

identify the components of a vector

brainly.com/question/8043832

negative vectors

brainly.com/question/11236351

add two velocity vectors

brainly.com/question/11194474

Keywords: vectors, a swimmer, river, Addition of two vectors

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The doctor's average speed for the whole trip is 75 km per hour. His average velocity for the whole trip is zero.
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A construction worker accidentally drops a brick from a high scaffold. a. What is the brick's velocity after 4.0 s? b. How far d
AlekseyPX

Answer:

A. 39.2 m/s

B. 78.4 m

Explanation:

Data obtained from the question include:

Time (t) = 4 s

Acceleration due to gravity (g) = 9.8 m/s²

A. Determination of the brick's velocity.

Time (t) = 4 s

Acceleration due to gravity (g) = 9.8 m/s²

Velocity (v) =?

v = gt

v = 4 × 9.8

v = 39.2 m/s

Thus, the brick's velocity after 4 s is 39.2 m/s

B. Determination of how far the brick fall in 4 s.

Time (t) = 4 s

Acceleration due to gravity (g) = 9.8 m/s²

Height (h) =?

h = ½gt²

h = ½ × 9.8 × 4²

h = 4.9 × 16

h = 78.4 m

Thus, the brick fall 78.4 m during the time.

5 0
2 years ago
A circuit is supplied with 60 VDC and contains two series resistors with values of 100 and 400 . What is the total current in th
scoundrel [369]

When resistors are connected in series, they act like
a single resistor whose resistance is their sum. 

100 ohms and 400 ohms, connected in series, look like
a single resistor of 500 ohms.

           Current = (voltage) / (resistance)

                        = (60 volts) / (500 ohms) = 0.12 A.
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<span>
Current is measured by connecting a meter in series
with an energized component.  In other words, a break
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6 0
2 years ago
Two swimmers begin a race and Swimmer A completes each length of the pool in 30 seconds, while Swimmer B completes each length i
Anni [7]

Answer:1.33 times

Explanation:

Given

A takes 30 sec to complete each length

While B takes 40 sec to complete each length

Let L be the Length of Swimming pool Length

and V_a and V_b be the length of A & B

Thus after 5 minutes A traveled

x_a=\frac{L}{30}\times 5\times 60=10L

x_b=\frac{L}{40}\times 5\times 60=7.5L

so A is 2.5L units ahead of B

A has traveled 1.33 times than B in 5 mins

6 0
2 years ago
In the Daytona 500 auto race, a Ford Thunderbird and a Mercedes Benz are moving side by side down a straightaway at 71.0 m/s. Th
qaws [65]

Answer:

The distance between both cars is 990 m

Explanation:

The equations for the position and the velocity of an object moving in a straight line are as follows:

x = x0 + v0 * t + 1/2 * a * t²

v = v0 + a * t

where:

x = position of the car at time "t"

x0 = initial position

v0 = initial speed

t = time

a = acceleration

v = velocity

First let´s find how much time it takes the driver to come to stop (v = 0).  We will consider the origin of the reference system as the point at which the driver realizes she must stop. Then x0 = 0

With the equation of velocity, we can obtain the acceleration and replace it in the equation of position, knowing that the position will be 250 m at that time.

v = v0 + a*t

v-v0 / t = a

0 m/s - 71.0 m/s / t =a

-71.0 m/s / t = a

Replacing in the equation for position:

x = v0* t +1/2 * a * t²

250 m = 71.0 m/s * t + 1/2 *(-71.0 m/s / t) * t²

250 m = 71.0 m/s * t - 1/2 * 71.0 m/s * t

250m = 1/2 * 71.0m/s *t

<u>t = 2 * 250 m / 71.0 m/s = 7.04 s</u>

It takes the driver 7.04 s to stop.

Then, we can calculate how much time it took the driver to reach her previous speed. The procedure is the same as before:

v = v0 + a*t

v-v0 / t = a      now v0 = 0 and v = 71.0 m/s

(71.0 m/s - 0 m/s) / t = a

71.0 m/s / t =a

Replacing in the position equation:

x = v0* t +1/2 * a * t²      

390 m = 0 m/s * t + 1/2 * 71.0 m/s / t * t²       (In this case, the initial position is in the pit, then x0 = 0 because it took 390 m from the pit to reach the initial speed).

390m * 2 / 71.0 m/s = t

<u>t = 11.0 s</u>

In total, it took the driver 11.0s + 5.00 s + 7.04 s = 23.0 s to stop and to reach the initial speed again.

In that time, the Mercedes traveled the following distance:

x = v * t = 71.0 m/s * 23.0 s = 1.63 x 10³ m

The Thunderbird traveled in that time 390 m + 250 m = 640 m.

The distance between the two will be then:

<u>distance between both cars = 1.63 x 10³ m - 640 m = 990 m.  </u>

3 0
2 years ago
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