Simple question about velocity/acceleration

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Homework Help Overview

The discussion revolves around the concepts of velocity and acceleration, specifically addressing scenarios where an object may have zero acceleration while in motion, and vice versa. Participants explore the implications of constant velocity and changing acceleration.

Discussion Character

  • Conceptual clarification, Assumption checking

Approaches and Questions Raised

  • Participants discuss the conditions under which an object can have zero acceleration while moving and whether an object can accelerate when its velocity is zero. Some express certainty about the first question while others question the second scenario.

Discussion Status

There is a mix of agreement and differing opinions on the questions posed. Some participants provide affirmations, while others present alternative views and seek clarification on the nature of deceleration and constant acceleration.

Contextual Notes

Participants reference specific scenarios involving positive and negative acceleration, as well as the implications of changing direction, which may indicate assumptions about motion that are being examined.

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Can an object be moving when its acceleration is zero?
-it can for any length in time, correct?

And can an object be accelerating when its velocity is zero?
-it can, but only for one moment in time, correct?
 
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Jay can you look at my two other my recent post about ball acceleration/velocity and velocity of a ball please?
 
for 1st question certainly yes..any thing consisting constant velocity has 0 acceleration..

And for second ques...well...i think its not possible
 
Phy.man said:
for 1st question certainly yes..any thing consisting constant velocity has 0 acceleration..

And for second ques...well...i think its not possible

I think the 3st question and the second are correct
the first one when an object moving with constant velocity so it's acceleration is 0
the second question occurs in many cases for example when an object moving in the +ve x direction and its acceleration is negative so that means it is decelerating at a moment when he object changes direction the velocity will be zero and the acceleration will still constant

best regards :)
 
the second question occurs in
many cases for example when
an object moving in the +ve x
direction and its acceleration is
negative so that means it is
decelerating at a moment when
he object changes direction the
velocity will be zero and the
acceleration will still constant
best regards :)
how can a decelerating object have a constant acc?
 
Phy.man said:
how can a decelerating object have a constant acc?

when it's initial velocity is positive and its acceleration is negative or vies versa.
 

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