Distance Traveled & Average Speed

  • Thread starter dgsigala
  • Start date
  • #1
dgsigala
4
0

Homework Statement



A driver maintains a steady speed of 30.0 m/s for 55 min and then slows to 10 m/s for the next 5 mins. Determine the the total distance traveled and the average speed for the trip.


Homework Equations



a = v−v0/t



The Attempt at a Solution



a = 30 - 10 / 60 = .333

Please help me, haven't taken physics in a long time. Review for class.
 

Answers and Replies

  • #2
Pythagorean
Gold Member
4,292
278
distance traveled = (speed of travel)*(time traveled)

if you change speeds, you can break the problem into two parts, so you'd do the above equation for each part. Can you guess how you'd find the total distance travelled from the two parts?
 
  • #3
dgsigala
4
0
find the average: add them up and divide by 2?
 
  • #4
Pythagorean
Gold Member
4,292
278
no, not quite. Start with the total distance first.
 
  • #5
dgsigala
4
0
40 m/s? Sorry. I'm really confused.
 
  • #6
Pythagorean
Gold Member
4,292
278
What do you get for the distance traveled in each part?
 

Suggested for: Distance Traveled & Average Speed

Replies
1
Views
20K
Replies
2
Views
3K
Replies
2
Views
2K
Replies
4
Views
7K
Replies
4
Views
21K
Replies
2
Views
16K
  • Last Post
Replies
1
Views
5K
  • Last Post
Replies
5
Views
3K
  • Last Post
Replies
11
Views
4K
  • Last Post
Replies
12
Views
1K
Top