1. Sep 21, 2005 #1

   xcutezix

   

   physics PLEASE HELP :(
   
   please help me i really dont know how to do this question for physics
   
   A cyclist travels to work at an average speed of 3 metres/sec and returns at an average speed of 9 metres/sec what is the average speed of the entire journey??
   
   the answer is not 6 and it is not as simple as speed= distance/time please help

    

   Last edited: Sep 21, 2005

   xcutezix, Sep 21, 2005
2. 
   Phys.org - latest science and technology news stories on Phys.org

   • • World's fastest man-made spinning object could help study quantum mechanics
   • • Big tech firms agree on 'data portability' plan
   • • Sahara dust may make you cough, but it's a storm killer
3. Sep 21, 2005 #2

   Doc Al

   

   Staff: Mentor

   The average speed is found by dividing the total distance by the total time of travel. (Since you aren't given the distance, just make one up.)

    

   Doc Al, Sep 21, 2005

• Log in with Facebook
• Log in with Twitter

Your name or email address:

Do you already have an account?

• No, create an account now.
• Yes, my password is:
• Forgot your password?

Stay logged in