answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
klasskru
12 days ago
8

Jack and jill exercise in a 25.0-m-long swimming pool. jack swims nine lengths of the pool in 2 minutes and 34.5 seconds, while

jill, the faster swimmer, covers ten lengths in the same time interval. find the average velocity and average speed of each swimmer.
Mathematics
1 answer:
lawyer [12.5K]12 days ago
5 0
Jack swims a total distance of 9*25.0m=225.0 meters in 2 minutes and 34.5 seconds.

The time duration of 2 minutes and 34.5 seconds can be converted to seconds: 2*60sec +34.5 sec= 154.5 s


Jill completes 10*25.0m = 250 m also in 154.5 s.


\displaystyle{ Average\ Speed= \frac{Distance\ traveled}{Time \ of \ travel}\\\\



\displaystyle{ Average \ Velocity = \frac{Displacement}{time}



Therefore,
the speed of Jack calculates to: 225.0 meters / 154.5 s =(225/154.5) m/s = 1.46 m/s

the speed of Jill calculates to: 250.0 meters / 154.5 s =(250/154.5) m/s = 1.62 m/s


Assuming both Jack and Jill start from point 0 moving in the positive direction,

an even number of lengths results in a Displacement of 0, while an odd number results in a Displacement of 25 m


Thus, Jill's average Velocity is 0,

and Jack's average velocity is 25/154.5 = 0.16 m/s

Answer:

Jack's Average Speed: 1.46 m/s

Jill's Average Speed: 1.62 m/s

Jack's Average Velocity: 0

Jill's Average Velocity: 0.16 m/s

You might be interested in
David wants to rent a bicycle for a couple of hours to explore the city. The price of the bike rental, (P)(P)left parenthesis, P
babunello [11817]

Answer:

The charge for the first three hours is $4 per hour.

Subsequently, the rate decreases to $2 per hour until the sixth hour.

Between the sixth and tenth hours, the cost is reduced further to $1 per hour.

The maximum charge for renting the bike is $30.

Step-by-step explanation:

The incline on the graph indicates the hourly rate for the bike rental.

During the initial three hours, the rental fee rises by $4 for each hour.

From the third to the sixth hour, the graph’s slope indicates a rate of $2 per hour for the rental.

The charge drops to $1 per hour from the sixth to the tenth hour.

After the tenth hour, the price, P, remains constant. The highest fee for the bike rental is $30.

6 0
1 month ago
A home’s value increases at an average rate of 5.5% each year. The current value is $120,000. What function can be used to find
Svet_ta [12734]

Answer:

f(x)=120000 \times (1.055)^{x}

Step-by-step explanation:

The present value of the house is $120,000 and the interest rate is 5.5%, or 0.055.

We will utilize the following equation:

f(x)=P \times (1+r)^{x}

where P represents the present value, r symbolizes the interest rate, and x refers to the number of years.

By inputting the values into the above equation, we can obtain:

f(x)=120000 \times (1+0.055)^{x}

f ( x ) = 120000 \times ( 1.055 ) ^ { x }

8 0
20 days ago
Read 2 more answers
Aaron draws a segment in his notebook. What is the minimum number of points through which the segment is drawn?
PIT_PIT [12445]

Answer:

The result is 2

Step-by-step explanation:

A segment requires at least 2 points for its construction.

In geometry, a line segment refers to a section of a line defined by two unique endpoints, encompassing all points located along the line segment between these endpoints.

5 0
1 month ago
Read 2 more answers
Which transformations can be used to carry ABCD onto itself? The point of rotation is (3, 2). Check all that apply.
Leona [12618]

Both A and B.

This is due to the fact that X=3 cleanly divides the rectangle into two equal halves, causing any reflection to resemble the original shape.

Additionally, any shape with two lines of symmetry, when rotated 180 degrees, will align with one of the axes of symmetry and appear the same as the original shape.

7 0
1 month ago
Read 2 more answers
A real number in between 13 and 14 square root
Inessa [12570]
<span>Real numbers can be either rational or irrational.
sqrt(13) ≈ 3.60555
sqrt(14) ≈ 3.74166
A simple nearby rational approximation is 3.7 = 37/10.
An example of an irrational number between them is sqrt(27/2).</span>
6 0
17 days ago
Other questions:
  • Emma is an artist and has created seven paintings. She plans to paint three additional paintings each week. What statements are
    5·2 answers
  • The area of a closet is 100 square feet. Write the number in exponent form and in word form
    6·2 answers
  • In a recent text message survey, 4,000 randomly selected teenagers were asked to cite their favorite Florida college football te
    13·1 answer
  • Kane is training for a marathone. He started by running 3 miles during every training session. Each week plans to increase the d
    7·1 answer
  • Angel, Juan y Ricardo son hermanos. Durante el mes de agosto viajaron a visitar a sus padres que viven en Huancayo. Angel llega
    5·1 answer
  • Which of the equations below represents a line perpendicular to the x-axis?
    8·2 answers
  • NEED ASAP PLEASE
    10·3 answers
  • What is the solution to the system of equations? y = A system of equations. Y equals StartFraction one-third EndFraction minus 1
    11·2 answers
  • For a craft project, four students each chose three pieces of wire from a box. Don's wires measure 3 inches, 5 inches, and 12 in
    6·1 answer
  • Marcus and Jeremy both evaluated the expression −52 + 3. Marcus said the answer was −22. Jeremy said the answer was 28. Who is c
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!