Velocity and Acceleration: Possible Scenarios?

Click For Summary

Homework Help Overview

The discussion revolves around scenarios involving velocity and acceleration, specifically examining cases where a body has zero velocity but non-zero acceleration, and where a body has constant velocity with variable acceleration. Participants are exploring the feasibility of these scenarios.

Discussion Character

  • Exploratory, Conceptual clarification, Assumption checking

Approaches and Questions Raised

  • Participants are questioning the validity of the scenarios presented, with some suggesting examples such as a ball being thrown up to illustrate the concepts. Others express confusion about the implications of acceleration and velocity in these contexts.

Discussion Status

The discussion is ongoing, with participants sharing thoughts and examples to clarify their understanding. Some guidance has been offered regarding the relationship between force, acceleration, and velocity, but no consensus has been reached on the impossibility of the scenarios.

Contextual Notes

Participants are grappling with definitions and implications of acceleration and velocity, and there is an acknowledgment of prior knowledge that may influence their interpretations.

hasanhabibul
Messages
31
Reaction score
0
1)a body having zero velocity but acceleration not zero...and 2)a body having constant velocity and variable acceleration...which one is impossible. or both are correct or neither is.
 
Physics news on Phys.org
What do you think?
 
@hasanhabibul
For the first one, think about a ball being thrown up, stopping, and going down.
 
i think both are impossible...both seems to be very strange to me...but myresult is not correct..i have known it from the answer...at least both will not be impossible...either or both will be possible ..
 
(1) What about IBY's example of a ball tossed straight up in the air? What's the acceleration? What's the speed at the very top of the motion?
(2) What's the definition of acceleration?
 
If the ball slows down, that means there is a force, ie. gravity. If there is a force, what does that imply that there is? Plus, after the ball slows down and stops, it goes down again, which means that force is still being applied. Note, velocity is changing throughout the whole process.
 
ohh thnx both of u...i got it
 

Similar threads

Terminal velocity and acceleration
  • · Replies 7 ·
Replies
7
Views
1K
Acceleration of a ball at its max height after being thrown upwards
  • · Replies 11 ·
Replies
11
Views
1K
Is My Calculation of Centripetal Acceleration and Tangential Velocity Correct?
  • · Replies 12 ·
Replies
12
Views
2K
Relation between Friction, Velocity, and Acceleration
  • · Replies 16 ·
Replies
16
Views
2K
Why would this be accelerating positively?
  • · Replies 6 ·
Replies
6
Views
1K
Will Y-Direction Motion Cease with X-Direction Acceleration Only?
  • · Replies 30 ·
2
Replies
30
Views
2K
In a constant acceleration motion, Is it possible to have constant speed?
  • · Replies 11 ·
Replies
11
Views
2K
Calculate the Acceleration of this Car
  • · Replies 7 ·
Replies
7
Views
1K
Query related to Two-Dimensional Motion
  • · Replies 9 ·
Replies
9
Views
1K
Mass, acceleration and velocity
  • · Replies 3 ·
Replies
3
Views
2K