Acceleration & Speed: Effects Per Second?

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Discussion Overview

The discussion centers around the concept of acceleration and its effect on speed over time, particularly in the context of a ball rolling with a constant acceleration. Participants explore how acceleration influences velocity at specific time intervals.

Discussion Character

  • Exploratory, Technical explanation, Conceptual clarification

Main Points Raised

  • One participant questions the effects of acceleration per second, specifically asking if a ball with an acceleration of 2 m/s² will have velocities of 0 m/s at second 0, 2 m/s at second 1, 4 m/s at second 2, and so forth.
  • Another participant reiterates the initial question, affirming that linear acceleration implies an increase in speed over time.
  • A third participant clarifies that acceleration is defined as the change in velocity per unit time, indicating that with an acceleration of 2 m/s², the velocity after 10 seconds would be 20 m/s, confirming the initial participant's understanding if starting from zero velocity.
  • A later reply expresses appreciation for the clarification, indicating a positive reception to the explanation provided.

Areas of Agreement / Disagreement

Participants generally agree on the basic principles of acceleration and its effect on velocity, with no significant disagreement noted in the responses.

Contextual Notes

The discussion assumes a constant acceleration and does not address potential complexities such as varying forces or external factors that could influence the motion of the ball.

Who May Find This Useful

This discussion may be useful for individuals seeking to understand the relationship between acceleration and velocity in a straightforward context, such as students or those new to physics concepts.

SpanishOmelette
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dumb question, but what effect does acceleration have per second?

If a ball rolling at an acceleration of 2 m/s/s, and goees like that for 10 seconds, will it be 0m/s at second 0, 2 at 1, 4 at 2, and so on?
 
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SpanishOmelette said:
dumb question, but what effect does acceleration have per second?

If a ball rolling at an acceleration of 2 m/s/s, and goees like that for 10 seconds, will it be 0m/s at second 0, 2 at 1, 4 at 2, and so on?

That's what (linear) acceleration means: an increase in speed over time.
 
Acceleration is the change in velocity per unit time. So if you have an acceleration of 2 m/s/s, your velocity after 10 seconds will be ##v_0 +20 m/s##. So if initial velocity is zero, then yes, just as you described.
 
Ah ok. So it literally works how it sound?

Lovely.

Thanks. I didn't even finish browsing and you answered!

Mahmoud.
 

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