# physics

A person is to run a circular track with a radius of 93 meters. The person starts at a certain spot and runs 3 and 1/2 times around the track in a time of 227 seconds. Find the magnitude of average velocity for this trip (|vav|) and find the average speed for this trip. Then subtract the magnitude of the average velocity from the average speed (avg. speed - |vav|). Answer in m/s.

1. 👍 0
2. 👎 0
3. 👁 135
1. average velocity= change in displacement/time

change in displacement=finalposition-initial = 186N

average speed= distance/time where distance = 3.5*pi*2r

1. 👍 0
2. 👎 0

## Similar Questions

1. ### PHysics!!

Starting from rest at a height equal to the radius of the circular track, a block of mass 25 kg slides down a quarter circular track under the influence of gravity with friction present (of coefficient μ). The radius of the track

asked by Bob on May 8, 2012
2. ### Physics

A circular track has several concentric rings where people can run at their leisure. Phil runs on the outermost track with radius rP while Annie runs on an inner track with radius rA = 0.90 rP. The runners start side by side,

asked by Abby on October 6, 2016
3. ### Physics

A flat uniform circular disk (radius = 2.10 m, mass = 1.00 102 kg) is initially stationary. The disk is free to rotate in the horizontal plane about a frictionless axis perpendicular to the center of the disk. A 40.0-kg person,

asked by Kevin on November 4, 2010
4. ### physics

As the earth rotates through one revolution, a person standing on the equator traces out a circular path whose radius is equal to the radius of the earth (6.38 106 m). What is the average speed of this person in meters per second?

asked by Anonymous on August 19, 2009
5. ### math

There is a diagram of a running track. The track is made up of two straights and two semicircles. The radius of each semicircle is 35 meters. The length of the outer perimeter of the entire running track is 400 meters. Find the

asked by Melanie on May 19, 2016
1. ### English

The speaker in "The Road Not Taken" is most clearly which type of person? A person who made a decision. A person who likes a well-beaten path. A person now standing at a fork. A person lost in the woods***

asked by Anonymous on May 11, 2020
2. ### Physics

A person of mass 55 kg stands at the center of a rotating merry-go-round platform of radius 3.4 m and moment of inertia 670 kg·m2. The platform rotates without friction with angular velocity 1.0 rad/s. The person walks radially

asked by Sierra on January 23, 2011
3. ### Physics

A 51kg person on a merry-go-round is traveling in a circle with a radius of 2 m at a speed of 6 m/s A) What acceleration does the person experience? B) What is the net horizontal force? C) How does it compare with the person's

asked by Sue on October 1, 2016
4. ### physics

a runner run halfway around a circular track whose radius is 60 meters in 45 secs what is the average velocity? what is the average speed?

asked by Dan on October 16, 2011
5. ### Career prep

What might happen if a newly hired person filled out a w-4 form incorrectly a.That person could be placed in a job thats not suitable b.That person may have a larger tax bill to pay on income taxes c.That person might be arrested

asked by Honors Courses ONLY Mel❤nie on September 28, 2019
6. ### physic

A race car travels 950 km around a circular sprint track of radius 1.343 km. How many times did it go around the track?

asked by joy on January 19, 2018