#2 1800mX.3600s23.8 m/s2. A person jogs eight complete laps around a 400-m track in a total time of 14.5 min.Calculate (a) the average speed and (b) the average velocity, in m/s.3. At highway speeds, a particular automobile is capable of an acceleration of about 1.8m/s?. At this rate, how long does it take to accelerates from 65 km/h to 120 km/h?un known8.5s

Answered: 360 23.8 2. A person jogs eight…

360 23.8 2. A person jogs eight complete laps around a 400-m track in a total time of 14.5 min Calculate (a) the average speed and (b) the average velocity, in m/s.

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter1: Introduction: The Nature Of Science And Physics

Section: Chapter Questions

Problem 1PE: The speed limit on some interstate highways is roughly 100 km/h. (a) What is this in meters per...

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Estimate of calculation

Question

1800m
X.
3600s
23.8 m/s
2. A person jogs eight complete laps around a 400-m track in a total time of 14.5 min.
Calculate (a) the average speed and (b) the average velocity, in m/s.
3. At highway speeds, a particular automobile is capable of an acceleration of about 1.8
m/s?. At this rate, how long does it take to accelerates from 65 km/h to 120 km/h?
un known
8.5s

Expert Solution

Step 1

a) eight complete laps means total distance = 400×8=3200 m

Time = 14.5×60= 870 sec

So, average speed = 3200/870 = 3.68 m/s

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