What is the average acceleration of a car

  • Thread starter espo
  • Start date
  • #1
espo
what is the average acceleration of a car that goes from rest to 59 km h in 9.0 seconds?
 
Last edited by a moderator:

Answers and Replies

  • #2
Integral
Staff Emeritus
Science Advisor
Gold Member
7,212
56
acceleration is definined to be change in velocity per unit time.

What is your change in velocity?

What is your change in time?

Can you take it from there?
 
  • #3
279
1
First convert 59 Km/h into m/s:

59 * 1000 / 3600 (seconds in an hour) (m in a Km)

59 / 3.6 = 16.4 m/s

Then use the constant acceleration formula:

v = u + at
16.4 = 0 + a*9.0
a = 16.4/9.0
a = 1.82 m/s2
 
  • #4
russ_watters
Mentor
20,963
7,584
Generally, lavalamp, we lead them in the right direction and then let them figure it out from there. Thats the way their teachers would want it.
 
  • #5
279
1
Oops, I'll try and remember that in future. :frown:
 

Related Threads on What is the average acceleration of a car

Replies
2
Views
2K
  • Last Post
Replies
1
Views
1K
  • Last Post
Replies
1
Views
969
  • Last Post
Replies
3
Views
948
Replies
1
Views
2K
Replies
7
Views
5K
Replies
2
Views
2K
Replies
13
Views
4K
  • Last Post
Replies
4
Views
1K
Replies
3
Views
4K
Top