NEWTON'S LAWS:

  • Thread starter renixrawr
  • Start date
  • #1
1
0
NEWTON'S LAWS: plz help!!

:eek:

so im kinda stuck.

problem:

a 2.5kg basketball is dropped from the top of a building. its acceleration is found to be 9.4m/s2 as it drops to the ground. What is the force of air friction on the ball as it falls?

so like...

a=9.4
m-2.5kg
ffs=?
fg=ma
=(2.5)(9.8)
fg= 24.5N

now how do i find Ffs?:grumpy:
 

Answers and Replies

  • #2
berkeman
Mentor
58,774
8,903
What would the acceleration be if there were no air (like in a vacuum)? What causes the difference? How can you use F=ma to solve for the air resistance force and acceleration?
 
  • #3
960
0
from ma=mg+Fdrag that simple. a is given, g is 9.8
 

Related Threads on NEWTON'S LAWS:

  • Last Post
Replies
5
Views
1K
  • Last Post
Replies
4
Views
2K
  • Last Post
Replies
3
Views
2K
  • Last Post
Replies
1
Views
803
  • Last Post
Replies
2
Views
2K
  • Last Post
Replies
5
Views
591
  • Last Post
Replies
2
Views
1K
  • Last Post
Replies
8
Views
1K
  • Last Post
Replies
13
Views
2K
  • Last Post
Replies
2
Views
2K
Top