Homework Help: science

Posted by ben on Sunday, September 10, 2006 at 12:15pm.

You drive on an interstae 10 from San Antonio to Huston, half the [b]time[/b] at 55km/h and the other half at 90km/h. On the way back you travel half the [b]distance[/b] at 55km/h and the other half at 90km/h.

What is your average speed from San Antonio to Houston

What is your speed from houston to San Antonio?

c) speed for entire trip

d) What is your average velocity for the whole trip?

see the last post before this.

let d be half the distance from sananton to houston.
time= d/55 + d/90

avg speed = 2d/time

I will behappy to critique your work.

how far can sound go on for

http://news.bbc.co.uk/1/hi/magazine/4521232.stm

http://www.mainegreens.org/electoral/party/monitor/fall2001/NewAssaultOnWhales.html

No one has answered this question yet.

Answer this Question

Related Questions

physics - You drive on an interstae 10 from San Antonio to Huston, half the [b]...
Math - A car is traveling south at a speed of 68 mi/h from Dallas toward San ...
Math - The table shows the times a train left Austin and arrived in San Antonio ...
physical science - you drive 132 km/h for a half hour and then drive 60 km/h for...
physics - a point moving on a straight line traversed half the distance with a ...
Math - The question is: A Woman is selling an (X) amount of Oranges The first ...
Science Half Lives - I am confused about how to claculate half lives. Can you ...
Chemistry - Can you have one half-reaction take place, without the other half-...
Physics - Tim and Rick both can run at speed Vr and walk at speed , Vw with Vr &...
Physics - In an accidental explosion, a satellite breaks in half while in ...

For Further Reading

First Name:
School Subject:
Answer: