Posted by DESMOND on Tuesday, May 1, 2012 at 2:41am.
Question 1.
A car moves 26 km due east then 14 km due north. It then turns along a path running northeast with 15 km, then 17 km due west. If the time for the entire journey is 2 hrs, Find;
(a) the car’s average speed in m/s
(b) the car’s average velocity in km/h

ENG102  visoth, Tuesday, May 1, 2012 at 2:47am
average speed formula is total distance divided by total time
average velocity formula is total displacement over time
the two may seem like the same thing but they arent
velocity is a vector so direction has to be taken into account (for example say you start at an inital position and move ;eft 1 meter and then move right one meter, your total distance is 2 meter but your total displacement is zero because you are right back where you started

ENG102  visoth, Tuesday, May 1, 2012 at 2:48am
for your speed just add your total distance traveled (26 + 14 +15 + 17) and divide that by 2 hours

ENG102  visoth, Tuesday, May 1, 2012 at 2:50am
the velocity for this is a little trickier you have to figure out your final position and how far you are from your starting point and divide that by the time
Answer This Question
Related Questions
 ENG102  Question 1. A car moves 26 km due east then 14 km due north. It then ...
 physics  A car moves 26km due east then 14km due north. It then turns along a ...
 University of Ghana  • A car moves 26 km due east then 14 km due north. It then...
 physics 111  A bicycle travels 3.2 km due east in 0.10 h, then 5.6 km at 15.0° ...
 Physics  I am having trouble figuring out this question: Part 1: A long staight...
 Phys 2  I am having trouble figuring out this question: Part 1: A long staight ...
 Please Please HelpPhysics  I am having trouble figuring out this question: ...
 physics  A 316kg boat is sailing 12.0° north of east at a speed of 1.60 m/s. ...
 Physics  A 343kg boat is sailing 16.2° north of east at a speed of 1.98 m/s. ...
 physics  A 358kg boat is sailing 15.9° north of east at a speed of 1.80 m/s. ...
More Related Questions