Newton's Laws homework

  • #1

Homework Statement

[/B]A 10g bullet accelerates from rest to 500m/s in a gun barrel of length 10cm. Find the accelerating force (assuming it is constant).


Homework Equations


F=ma, v^2=vo^2+2a(x-xo)?

The Attempt at a Solution


I tried using F=ma, but it does not equal the answer in the back of the book.
 

Answers and Replies

  • #2
5
1
Have you converted the mass and length into kg and m? Then rearrange v2=vo2+2ax to find a. Then sub that into F=ma.
 
  • Like
Likes Gradyjenkinz
  • #3
Have you converted the mass and length into kg and m? Then rearrange v2=vo2+2ax to find a. Then sub that into F=ma.
Oh jeez. Got it now, thank you. Gotta make sure I actually pay attention to units :(
 

Related Threads on Newton's Laws homework

  • Last Post
Replies
5
Views
3K
  • Last Post
Replies
2
Views
3K
  • Last Post
Replies
4
Views
4K
T
  • Last Post
Replies
1
Views
2K
Replies
4
Views
2K
Replies
5
Views
2K
  • Last Post
Replies
9
Views
2K
Replies
4
Views
812
  • Last Post
Replies
19
Views
2K
Top