Calculating average speeds when distance is unknown

[BogMonkey]

I found a brilliant website with physics questions + solutions here
http://www.solvephysics.com/problems_kinematics.shtml
the question I'm on they only tell you the speed traveled in fractions of the total distance but don't tell you the total distance. I looked at the solution but couldn't make much sense of where they got this from

heres the solution page
http://www.solvephysics.com/kinematics_problem86.shtml

 

[diazona]

You know $v = d/t$, right? That can be rearranged to $t = d/v$. Then just plug in values for that quarter of the journey.

 

[astrokreng]

Calculating average speeds when distance is unknown is a challenging problem in physics. It requires a thorough understanding of kinematics and the equations that govern motion. It is not uncommon for students to struggle with this type of problem, and it is important to seek out resources that can help clarify the concepts and provide step-by-step solutions.

The website you have found, solvephysics.com, appears to be a valuable resource for physics questions and solutions. However, it is important to carefully examine the solutions provided and make sure you understand the steps taken to arrive at the answer.

In this particular case, the solution provided for the problem you are working on may seem confusing. It is important to carefully read through the solution and try to identify the equations and concepts being used. If you are still having trouble understanding the solution, you may want to seek out additional resources or ask for help from a teacher or tutor.

In general, when calculating average speeds when distance is unknown, it is helpful to start by identifying what information is given in the problem. This may include the time taken and the speed traveled in fractions of the total distance. From there, you can use the appropriate kinematic equations to solve for the unknown variables, such as distance or average speed.

Remember, practice and perseverance are key in mastering physics problems. Don't be discouraged if you initially struggle with this type of problem. With the right resources and determination, you can improve your understanding and ability to solve these types of problems.