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

Acceleration of gravity and baseball problem

  • Thread starter nrc_8706
  • Start date
  • #1
71
0
during a baseball game, a batter hits a popup to a fielder a distance of D m aways. the acceleration of gravity is 9.8m/s^2. if the ball reamins in the air for T seconds, how high does it rise.
1. h=D/4T
2.h=1/8gT^2
3.h=4D/T
4.h=2D/T
5.h=D/T
6.h=2gT^3
7.h=D/(2T)
 

Answers and Replies

  • #2
2
0
Key:2

the motion in the direction of gravity is not ralated with D, h=0.5gt^2.
t is half of T, for T is up and down, and t is up or down
 
  • #3
71
0
?

so which one is the answer?
 
  • #4
Fermat
Homework Helper
872
1
Well, the answer is unrelated to D, so that eliminates 5 of the options.
 
  • #5
71
0
?

yea but which one cause if i get it wrong it deducts from my score. n my score is bad enough
 
  • #6
Fermat
Homework Helper
872
1
Neverland's answer should give you a clue, but you should really be able to work it out by yourself.
The question is asking you to show your knowledge of basic equations of motion.
Do you know these ?
 
  • #7
71
0
thanks

i figured it out but now they are asking for the angle and they give you the distance and time.

is the distance half of at the maximum height?
 

Related Threads for: Acceleration of gravity and baseball problem

Replies
3
Views
3K
  • Last Post
Replies
1
Views
2K
  • Last Post
Replies
1
Views
2K
  • Last Post
Replies
5
Views
2K
  • Last Post
Replies
1
Views
2K
  • Last Post
Replies
1
Views
1K
  • Last Post
Replies
1
Views
2K
Replies
1
Views
3K
Top