Why is it one sec?,

  • #1
10
2
can you help me with this, please?
 

Attachments

  • 65.PNG
    65.PNG
    21.7 KB · Views: 489

Answers and Replies

  • #2
CWatters
Science Advisor
Homework Helper
Gold Member
10,541
2,314
Firstly it doesn't say "one second" it says "per second" which is a rate.

Momentum = mass * velocity
so
Momentum per second would be equal to mass * velocity / time

Velocity/time = acceleration.

can you do the rest?
 
  • #3
134
12
Force is the change in momentum per unit time.
F=ma (m=mass a=acceleration)
a= (vf-vi)/t
Replacing a into the force equation:

F=m (vf-vi)/t
Which is change in momentum per unit time.
 
  • #4
10
2

Related Threads on Why is it one sec?,

  • Last Post
Replies
2
Views
2K
  • Last Post
Replies
2
Views
2K
Replies
6
Views
2K
  • Last Post
Replies
12
Views
2K
Replies
5
Views
1K
Replies
3
Views
2K
  • Last Post
Replies
9
Views
8K
  • Last Post
Replies
6
Views
2K
  • Last Post
Replies
29
Views
4K
Top