Question

The following table shows the speeds at which Jeff does 4 activities. For example, biking has a rate of 19 miles in 2 hours. Which type of activity does Jeff do at a speed of 4.5 miles per hour?

Answer 1

Type of activity does Jeff do at a speed of 4.5 miles per hour is swimming

Further explanation

The mile is an English unit of length, of linear measure that equals to 5,280 feet. It originated from the Roman mille passus that measured as 5,000 Roman feet.

While the speed is distance traveled per unit of time. It is how fast an object is moving. Speed is the scalar quantity which is the magnitude of the velocity vector but it doesn't have a direction.

The following table shows the speeds at which Jeff does 4 activities.

For biking it needs 19 miles / 2 hours, hence it means 9.5 miles / hour.

For walking it needs 14 miles / 4 hours, hence it means 3.5 miles / hour.

For running it needs 15 miles / 3 hours, hence it means 5 miles / hour

For swimming it needs 18 miles / 4 hours, hence it means 4.5 miles / hour.

Which type of activity does Jeff do at a speed of 4.5 miles per hour? The answer is swimming activity. I hope it helps you.

Learn More:

1. Learn more about swimming brainly.com/question/10282083
2. Learn more about biking brainly.com/question/3047373
3. Learn more about running brainly.com/question/13301870

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Answer 2

The type of activity that Jeff does at a speed of 4.5 miles per hour is Swimming

Further explanation

Acceleration is rate of change of velocity.

$\large {\boxed {a = \frac{v - u}{t} } }$

$\large {\boxed {d = \frac{v + u}{2}~t } }$

a = acceleration ( m/s² )

v = final velocity ( m/s )

u = initial velocity ( m/s )

t = time taken ( s )

d = distance ( m )

Let us now tackle the problem !

This problem is about Kinematics.

We will solve it in the following way

$\texttt{Speed of Biking} = \texttt{Distance of Biking} \div \texttt{Time Taken}$

$\texttt{Speed of Biking} = \texttt{19} \div \texttt{2}$

$\texttt{Speed of Biking} = 9.5 \texttt{ miles per hour}$

$\texttt{ }$

$\texttt{Speed of Walking} = \texttt{Distance of Walking} \div \texttt{Time Taken}$

$\texttt{Speed of Walking} = \texttt{14} \div \texttt{4}$

$\texttt{Speed of Walking} = 3.5 \texttt{ miles per hour}$

$\texttt{ }$

$\texttt{Speed of Running} = \texttt{Distance of Running} \div \texttt{Time Taken}$

$\texttt{Speed of Running} = \texttt{15} \div \texttt{3}$

$\texttt{Speed of Running} = 5 \texttt{ miles per hour}$

$\texttt{ }$

$\texttt{Speed of Swimming} = \texttt{Distance of Swimming} \div \texttt{Time Taken}$

$\texttt{Speed of Swimming} = \texttt{18} \div \texttt{4}$

$\texttt{Speed of Swimming} = \boxed{4.5 \texttt{ miles per hour}}$

$\texttt{ }$

Learn more

• Velocity of Runner : brainly.com/question/3813437
• Kinetic Energy : brainly.com/question/692781
• Acceleration : brainly.com/question/2283922
• The Speed of Car : brainly.com/question/568302

Answer details

Grade: High School

Subject: Physics

Chapter: Kinematics

Keywords: Velocity , Driver , Car , Deceleration , Acceleration , Obstacle , Speed , Time , Rate