Find the time at which the two balls collide

  • Thread starter Guess78
  • Start date
  • #1
1
0
A ball is thrown straight up from the ground with speed Vo . At the same instant, a second ball is dropped from rest from a height H , directly above the point where the first ball was thrown upward. There is no air resistance.


1-Find the time at which the two balls collide.
Express your answer in terms of the variables "Vo","H" , and appropriate constants..


2-Find the value of "H" in terms of "Vo" and "g" so that at the instant when the balls collide, the first ball is at the highest point of its motion.
Express your answer in terms of the variables "Vo" and "g" .

Homework Statement





Homework Equations





The Attempt at a Solution

 

Answers and Replies

  • #2
LowlyPion
Homework Helper
3,097
5
Welcome to PF.

How would you think to start?
 

Related Threads on Find the time at which the two balls collide

  • Last Post
Replies
10
Views
15K
Replies
3
Views
13K
  • Last Post
Replies
3
Views
2K
Replies
8
Views
5K
Replies
4
Views
4K
Replies
1
Views
863
Replies
1
Views
4K
  • Last Post
Replies
4
Views
15K
Replies
5
Views
365
Top