Monday
August 31, 2015

Homework Help: physics

Posted by tanmay bhoite on Wednesday, April 11, 2012 at 2:20am.

On a long journey if 10% of the distance is covered at an average speed of 40 km/h and 90% of the distance is covered at an average speed of 90 km/h. What is the average speed for the entire journey? How does this answer change if the percentages relate to time rather than distance, that is, if 10% of the duration is covered at 40 km/h and 90% of the duration is covered at average speed of 90 km/h.

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

More Related Questions

Members