A cyclist travels 26.7 km in 54 min 16 s. What is his average velocity in m/s?

AI Thread Summary
To find the average velocity of a cyclist who travels 26.7 km in 54 minutes and 16 seconds, the distance must be converted to meters and the time to seconds. The average velocity is calculated using the formula: average velocity = displacement/time. Converting 26.7 km to meters gives 26,700 m, and converting 54 minutes and 16 seconds to seconds results in 3,259 seconds. The average velocity is then obtained by dividing the distance by the time, yielding approximately 8.2 m/s.
nerdemcee
Messages
3
Reaction score
0
i am new to physics, so could anyone help me solve this problem thank you

Homework Statement



A cyclist travels 26.7 km in 54 min 16 s. What is his average velocity in m/s?

Homework Equations


The Attempt at a Solution

 
Physics news on Phys.org
Welcome to PF,

The two pieces of information you have been given are the distance traveled by the cyclist and the time it took him to do so. Can you think of how you might use the given information to calculate what the problem is asking for? As a starting point, what is the definition of average velocity?
 
average velocity = Displacement divided by time

so do i convert km into m and min into secs?
 
You need to use conversion factors and dimensional analysis.
1 km = 1000 m and 1 min = 60 s

Change these into a form so that the kms and mins cancel out when you multiply them with the average velocity, and then you will get the answer in m/s.
 
thank you :)
 

Thread 'Rolling without slipping on a curved surface'

Kindly see the attached pdf. My attempt to solve it, is in it. I'm wondering if my solution is right. My idea is this: At any point of time, the ball may be assumed to be at an incline which is at an angle of θ(kindly see both the pics in the pdf file). The value of θ will continuously change and so will the value of friction. I'm not able to figure out, why my solution is wrong, if it is wrong .
View full post »

Thread 'Struggling to understand the concept of this question (ice cube in water optics question)'

TL;DR Summary: I came across this question from a Sri Lankan A-level textbook. Question - An ice cube with a length of 10 cm is immersed in water at 0 °C. An observer observes the ice cube from the water, and it seems to be 7.75 cm long. If the refractive index of water is 4/3, find the height of the ice cube immersed in the water. I could not understand how the apparent height of the ice cube in the water depends on the height of the ice cube immersed in the water. Does anyone have an...
View full post »

Similar threads

Two cyclists ride between a pair of towns with and against the wind
Replies
17
Views
1K
Calculate Distance Traveled: Instantaneous vs. Average Velocity
Replies
5
Views
2K
Runner's Average Velocity: 0.014 m/s
Replies
17
Views
2K
What is the displacement and average velocity of a classic car in a road rally?
Replies
1
Views
2K
Average velocity for two different types of motion along same path
Replies
22
Views
1K
Relative Wind Problem (Modern Engineering Mathematics, 5th)
Replies
3
Views
2K
Vectors, how to find average acceleration
Replies
13
Views
7K
How to calculate average velocity given distance and time?
Replies
6
Views
2K
Average velocity ##\bar{v}## for a uniformly accelerating particle
Replies
8
Views
1K
Calculating average velocity for this kind of motion
Replies
3
Views
2K

Hot Threads

Recent Insights

Back
Top