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

Falling particle

  • Thread starter sudec
  • Start date
  • #1
2
0

Homework Statement



Particle was thrown directly upwards. Point which is in distance “d” from the beginning of movement is passed by the particle two times. Once going upwards in time “t1” and second time going downwards in time “t2” from the beginning of the movement. What was the initial speed(v0) and the acceleration(a) of the particle?

Homework Equations



I really do not know how to start with this example.

The Attempt at a Solution



I have tried every possible solution that I was capable of, but I’m not able to come up with the correct answer which should be

v0=d*[(t1+t2)/(t1*t2)]

and

a=(2*d)/(t1*t2)
 

Answers and Replies

  • #2
277
1
Start with the equation for position o an object under constant acceleration.

Point which is in distance “d” from the beginning of movement is passed by the particle two times.
This defines the coordinate system for you: initial velocity is v0 and initial height is 0.
 

Related Threads for: Falling particle

  • Last Post
Replies
2
Views
5K
Replies
1
Views
2K
Replies
2
Views
2K
Replies
2
Views
4K
Replies
5
Views
326
Replies
4
Views
2K
Replies
19
Views
794
Replies
4
Views
3K
Top