Homework Help is Here – Start Your Trial Now!
Science
Physics
A cyclist moves at 11.0 m/s for 1.00 min and at 16.0 m/s for 2.00 min. Find the average velocity if the second part of the motion is (a) in the same direction as the first (hint, the answer is not 13.5 m/s), and (b) in the opposite direction.

A cyclist moves at 11.0 m/s for 1.00 min and at 16.0 m/s for 2.00 min. Find the average velocity if the second part of the motion is (a) in the same direction as the first (hint, the answer is not 13.5 m/s), and (b) in the opposite direction.

Stars and Galaxies
Stars and Galaxies
9th Edition
ISBN:9781305120785
Author:Michael A. Seeds, Dana Backman
Publisher:Michael A. Seeds, Dana Backman
Chapter9: The Famliy Of Stars
Section: Chapter Questions
Problem 2DQ
See similar textbooks
icon
Related questions
Question
7) A cyclist moves at 11.0 m/s for 1.00 min and at 16.0 m/s for 2.00 min. Find the average velocity if the second part of the motion is (a) in the same direction as the first (hint, the answer is not 13.5 m/s), and (b) in the opposite direction.
Draw a picture Label which directions are positive (x- and y-), and label relevant quantities on diagram Find a second equation... ...if you're missing a quantity needed to use an equation. Draw up a plan on how to link the equations & quantities Solve for the quantity without using numbers Physics Problem Flow Chart Draw a second picture... Identify explicitly given values First cancel any quantities that are zero. Use algebra to isolate the quantity you need on one side of the equals sign. Check with dimensional analysis ...if you have BEFORE/AFTER situations, force additions, vector component diagrams Find relevant equation(s) One that links the given quantities to the quantity you need to find Sub in numbers on paper Make sure units of each number are correct before you substitute in values into the equations Write all given actual numbers in terms of variables. For previously calculated values, use values before rounding for sig figs Identify required quantity and type of problem Look for keywords like "when", "how far", "how fast", etc. Get type of problem from quantities given/sought Use calculator to find value Use as few presses of the "=" or "ENTER" button as possible. Keep extra sig figs until next step Identify implicitly given values Wording that implies specific values: e.g. "at rest", "comes to a stop", "dropped", "smooth surface", "constant velocity" Calculate/convert easily derived quantities For example, the x- and y- components of velocity/force vectors, or the force of gravity given the mass Write conclusion statement with correct sig figs In plain English with correct units
Transcribed Image Text:Draw a picture Label which directions are positive (x- and y-), and label relevant quantities on diagram Find a second equation... ...if you're missing a quantity needed to use an equation. Draw up a plan on how to link the equations & quantities Solve for the quantity without using numbers Physics Problem Flow Chart Draw a second picture... Identify explicitly given values First cancel any quantities that are zero. Use algebra to isolate the quantity you need on one side of the equals sign. Check with dimensional analysis ...if you have BEFORE/AFTER situations, force additions, vector component diagrams Find relevant equation(s) One that links the given quantities to the quantity you need to find Sub in numbers on paper Make sure units of each number are correct before you substitute in values into the equations Write all given actual numbers in terms of variables. For previously calculated values, use values before rounding for sig figs Identify required quantity and type of problem Look for keywords like "when", "how far", "how fast", etc. Get type of problem from quantities given/sought Use calculator to find value Use as few presses of the "=" or "ENTER" button as possible. Keep extra sig figs until next step Identify implicitly given values Wording that implies specific values: e.g. "at rest", "comes to a stop", "dropped", "smooth surface", "constant velocity" Calculate/convert easily derived quantities For example, the x- and y- components of velocity/force vectors, or the force of gravity given the mass Write conclusion statement with correct sig figs In plain English with correct units
Expert Solution
steps

Step by step

Solved in 3 steps with 3 images

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Knowledge Booster
Distance and Speed
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.
Similar questions
  • SEE MORE QUESTIONS
Recommended textbooks for you
Stars and Galaxies
Stars and Galaxies
Physics
ISBN:
9781305120785
Author:
Michael A. Seeds, Dana Backman
Publisher:
Cengage Learning
University Physics Volume 1
University Physics Volume 1
Physics
ISBN:
9781938168277
Author:
William Moebs, Samuel J. Ling, Jeff Sanny
Publisher:
OpenStax - Rice University
SEE MORE TEXTBOOKS