What is the displacement covered by the man and bouncing ball?

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    Displacement
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Discussion Overview

The discussion revolves around the concept of displacement in the context of a man moving and a bouncing ball. Participants explore how to determine displacement in both scenarios, considering vertical and horizontal distances as well as the effects of multiple bounces.

Discussion Character

  • Conceptual clarification
  • Debate/contested

Main Points Raised

  • One participant questions whether to consider the vertical distance (15 m), horizontal distance (30 m), or both when calculating the man's displacement.
  • Another participant suggests that the displacement should be the length of the hypotenuse of a triangle formed by the vertical and horizontal distances, given the angle of 30 degrees.
  • A participant raises a similar question regarding a bouncing ball, asking whether the displacement should be measured as the distance from point A to B or from A to C, considering the ball's multiple bounces.
  • One participant asserts that displacement is defined as the distance from the initial position to the final position, indicating that the bounces can be ignored in this calculation.

Areas of Agreement / Disagreement

Participants express differing views on how to define and calculate displacement in the context of the bouncing ball, indicating that the discussion remains unresolved regarding the best approach to take.

Contextual Notes

Participants reference specific images to illustrate their points, which may contain additional assumptions or context not fully detailed in the text. The discussion does not resolve the definitions of displacement in the context of multiple bounces.

Misr
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Hello there ,
http://www.zshare.net/image/73581857700fb471/

If I am asked about the displacement covered by the man in this case , so should I write the vertical distance covered by the man (15 m) or the horizontal one (30 m) ??or they both work??
And why??
My question is the same for a rebounding ball
Thanks
 
Last edited by a moderator:
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The displacement in this case is the length of the hypotenuse of the triangle in the picture. Given the angle (30 deg.) and the vertical displacement (15m) you can find the total displacement.

Here's a good overview if you don't understand displacement: http://physics.info/displacement/

-David
 
The displacement in this case is the length of the hypotenuse of the triangle in the picture. Given the angle (30 deg.) and the vertical displacement (15m) you can find the total displacement.
Yeah I got this
but if we have a bouncing ball like this :
http://www.zshare.net/image/736726542f10869f/
the ball fall freely from a point to the ground then re-bounced again and again till it stopped on the surface of earth.
So Should the displacement be AB or AC?

Thanks
 
Last edited by a moderator:
The displacement goes from initial position to final position.
 
Misr said:
Yeah I got this
but if we have a bouncing ball like this :
http://www.zshare.net/image/736726542f10869f/
the ball fall freely from a point to the ground then re-bounced again and again till it stopped on the surface of earth.
So Should the displacement be AB or AC?

Thanks

A to B - like Doc said, its the distance between the initial and final positions. All the bounces can be ignored.

-David
 
Last edited by a moderator:
Yes I got it
thanks
 

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