• Support PF! Buy your school textbooks, materials and every day products Here!

Spring scale Problem

  • Thread starter DrDanger
  • Start date
  • #1
44
0

Homework Statement


You use a spring scale to pull a 1.5 kg object on a horizontal frictionless surface with a constant horizontal force of 1.3 N (according to the scale reading). You use a stopwatch to time how long it takes the object, starting from rest, to cover a distance of 2.7 m. What is the reading of the stopwatch?


Homework Equations


F=-KX
F=ma
[tex]\Delta X=VoT+.5aT^2[/tex]

The Attempt at a Solution


So I did a=F/m to get the acceleration then plugged that into [tex]\Delta[/tex] X=VoT+.5aT^2 and Vo is equal to 0. After i plugged it all in I got 2.49, is that right? For some reason it seems wrong.
 

Answers and Replies

  • #2
44
0
On a side note, is possible to find k using f=kx?
 

Related Threads on Spring scale Problem

  • Last Post
Replies
1
Views
4K
  • Last Post
Replies
8
Views
4K
Replies
2
Views
4K
  • Last Post
Replies
4
Views
4K
  • Last Post
Replies
17
Views
23K
  • Last Post
Replies
10
Views
18K
  • Last Post
Replies
3
Views
10K
  • Last Post
Replies
8
Views
4K
  • Last Post
Replies
4
Views
3K
Top