Physics
posted by y912f .
please show me how to solve this
1. A bus travels 280 km south along a straight path with an average velocity of 88 km/h to the south. the bus stops for 24 min. then, it travels 210 km south with an average velocity of 75 km/h to the south
a. how long does the total trip last?
answer=6.4 h
b. what is the average velocity for the total trip?
answer=77 km/h to the South
thanks to whoever helps=]

Physics 
drwls
a. Add the times requred for each of the two driving intervals, and add 24 minutes (0.4 hours) to that sum.
For each driving inteveral, use the reationship
time = distance)/(average speed
The sum will be the total driving and waiting time. Call it T.
b. Divide (280 + 210)km by T
That is how to do it. You do the numbers. 
Physics 
y912f
ok thanks

Physics 
mysterychicken
so is this what i do:
280+210[how much they traveled]=490
then add .4 hours = 490.4
then :
T=490.4[distance]/average speed so 81.5?
my answer comes out 6.01 hours
i think im still doing something wrong 
Physics 
y912f
the last post was by y912f not mysterychicken

Physics 
drwls
You did not follow my instructions. You cannot add distance (km) to time (hours) in physics. It makes no sense.
The total time is
T = 280/88 + 0.4 + 210/75 = 6.38 hours
Respond to this Question
Similar Questions

HURRY........quick post
Simpson drives his car with an average velocity of 1.2 m/s to the north from the bust stop to the museum entrance. What is your displacement? 
PHYSICS
A BUS TRAVELS 280 KM SOUTH ALONG A STRAIGHT PATH WITH AN AVERAGE VELOCITY OF 88 KM/H TO THE SOUTH. THE BUS STOPS FOR 24MIN, THEN IT TRAVELS 210 KM SOUTH WITH AN AVERAGE VELOCITY OF 75 KM/H TO THE SOUTH. A. HOW LONG DOES THE TOTAL TRIP … 
Physics
A bus travels 280 km south along a straight path with an average velocity of 88 km/hr to the south. The bus stops for 24 min, then it travels 210 km south with an average of 75 km/hr to the south. A. How long does the total trip last? 
Physics
A bus travels 280 km south along a straight path with an average velocity of 88 km/h to the south. The bus stops for 24 min. Then it travels 210 km south with an average velocity of 75 km/h to the south. how long does the total trip … 
physics
A bus travels 250 km south along a straightpath with an average velocity of 84 km/h to the south. The bus stops for 26 min, then it travels 240 km south with an average velocity of 70 km/h to the south. How long does the total trip … 
11th grade
A bus travel 250km south along a straight path with the average velocity of 84km/h to the the bus stop for 26 min. Then in it travel 240km with avrage 70km/h to the south.How long long did the hold trip take? 
Physics
A bus travels 270 km south along a straight path with an average velocity of 89 km/h to the south. The bus stops for 25 min, then it travels 250 km south with an average velocity of 68 km/h to the south. How long does the total trip … 
Physics
A bus travels 340 km south along a straight path with an average velocity of 88 km/h to the south. The bus stops for 22 min, then it travels 230 km south with an average velocity of 75 km/h to the south. How long does the total trip … 
Physics
A bus travels 290 km south along a straight path with an average velocity of 81 km/h to the south. The bus stops for 25 min, then it travels 210 km south with an average velocity of 80 km/h to the south. How Long does it lasts ? 
physics
a bus travels 280 km south along a straight path with an avg velocity of 88 km/h to the south. then it travels 210 km south with an avg velocity of 75 km/h to the south. a) how long does the 1st trip last?