Need help solving some equation regarding velocity, distance

  • Thread starter Thread starter Kenzo333
  • Start date Start date
  • Tags Tags
    Velocity
Click For Summary

Homework Help Overview

The discussion revolves around finding acceleration and time given velocity and distance, within the context of kinematics.

Discussion Character

  • Exploratory, Assumption checking, Mathematical reasoning

Approaches and Questions Raised

  • Participants explore various equations related to motion, questioning the validity of certain approaches when acceleration is involved. There are attempts to manipulate equations to isolate variables, and some participants suggest combining equations to reduce the number of unknowns.

Discussion Status

There is an active exploration of different equations and their applicability to the problem. Some participants have provided alternative equations and methods for consideration, while others have requested more context to clarify the problem setup.

Contextual Notes

Participants note the need for additional information regarding initial conditions and the nature of acceleration, as assumptions about constant versus variable acceleration are being discussed.

Kenzo333
Messages
7
Reaction score
0

Homework Statement



How to find acceleration and time if the given data is velocity and distance

Homework Equations



V = at
S = 1/2at2

The Attempt at a Solution



Sorry if I am in the wrong section, however I really don't know how to find the answer with the equations, please kindly provide me the with the explanation, thank you very much.
 
Physics news on Phys.org
s/v = t and now can find a
 
Don't you also have the equation (derivable from the given equations) : 2 a S = Vf^2 - Vi^2?
 
WIN said:
s/v = t and now can find a
S=v/t is only valid when there is no acceleration. If there is (constant) acceleration then you need three pieces of information, any three of time, distance, initial velocity, final velocity. If the acceleration is not constant then you need even more.
Please post the whole question, word for word.
 
  • Like
Likes   Reactions: WIN
how about just combining the both?
v=at so a=v/t
then substitute it into the second equation. There you will get only 1 unknown in the second equation.
 

Similar threads

  • · Replies 3 ·
Replies
3
Views
1K
  • · Replies 5 ·
Replies
5
Views
3K
  • · Replies 15 ·
Replies
15
Views
2K
Replies
4
Views
2K
  • · Replies 11 ·
Replies
11
Views
3K
Replies
1
Views
3K
Replies
2
Views
4K
  • · Replies 9 ·
Replies
9
Views
2K
  • · Replies 3 ·
Replies
3
Views
2K