Insights Blog
-- Browse All Articles --
Physics Articles
Physics Tutorials
Physics Guides
Physics FAQ
Math Articles
Math Tutorials
Math Guides
Math FAQ
Education Articles
Education Guides
Bio/Chem Articles
Technology Guides
Computer Science Tutorials
Forums
Intro Physics Homework Help
Advanced Physics Homework Help
Precalculus Homework Help
Calculus Homework Help
Bio/Chem Homework Help
Engineering Homework Help
Trending
Featured Threads
Log in
Register
What's new
Search
Search
Search titles only
By:
Intro Physics Homework Help
Advanced Physics Homework Help
Precalculus Homework Help
Calculus Homework Help
Bio/Chem Homework Help
Engineering Homework Help
Menu
Log in
Register
Navigation
More options
Contact us
Close Menu
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Forums
Homework Help
Introductory Physics Homework Help
What is the average power of a boy
Reply to thread
Message
[QUOTE="ogg, post: 5481303, member: 514770"] If you allow me to rephrase the question: The boy and tricycle accelerate to a velocity of 9 km/hr. (the amount of time it takes isn't relevant for the problem, it could be 1 second or 1 hour) After reaching that velocity he maintains it for some time (again, amount of time is not relevant). Finally he stops pedaling and coasts to a stop going 7.5 m from the instant he stopped pedaling. Assume that the ground is flat and friction is constant. He and the bike together weigh 21 kg. While he was pedaling at 9 km/hr, what (average) power was he expending? Figuring out the amount of energy he had the instant he stopped pedaling is a great first step. Why did he stop? Where did that energy go? You can use the answers to those questions for the next step. [/QUOTE]
Insert quotes…
Post reply
Forums
Homework Help
Introductory Physics Homework Help
What is the average power of a boy
Back
Top