Initial speed help.

  • Thread starter iac0b
  • Start date
  • #1
iac0b
5
0
A ball is launched directly upward from ground level with an initial speed of 18 m/s. (Air resistance is negligible.)

What equation would I use to find the time the ball was in the air?
 

Answers and Replies

  • #2
berkeman
Mentor
63,246
14,203
A ball is launched directly upward from ground level with an initial speed of 18 m/s. (Air resistance is negligible.)

What equation would I use to find the time the ball was in the air?

Welcome to the PF.

Thread moved to Homework Help / Intro Physics.

You would use the Kinematic Equations of Motion for constant acceleration (since the acceleration due to gravity is constant on the Earth's surface). See half-way down this wikipedia page:

http://en.wikipedia.org/wiki/Kinematic_equations#Equations_of_uniformly_accelerated_motion

.
 
  • #3
iac0b
5
0
Thanks :)
 

Suggested for: Initial speed help.

Replies
6
Views
228
  • Last Post
Replies
3
Views
1K
  • Last Post
Replies
2
Views
1K
Replies
16
Views
562
  • Last Post
Replies
13
Views
807
Replies
62
Views
1K
Replies
18
Views
402
Top