Bouncing a ball at rest on a surface

Cross, Rod

doi:10.1088/1361-6552/ab7956

Cited by 2 publications

(1 citation statement)

References 3 publications

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“…An exception can arise if the mass and stiffness of each ball is adjusted to create a dispersion-free chain of balls, as described previously [3][4][5], in which case the incident ball will rebound without a change in speed. Alternatively, the mass and stiffness of the balls can be varied so that all balls rebound at about the same speed [8].…”

Section: Introductionmentioning

confidence: 99%

Newton’s cradle with an end stop

Cross

2020

Eur. J. Phys.

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A Newton’s cradle experiment is described where the end ‘ball’ was much heavier than the rest and acted as an end stop. The experiment was conducted to examine the elastic response of billiard balls to a measured impact force, as well as the behaviour of a billiard ball chain in a cradle. The results agree well with a Hertzian force law and are qualitatively similar to those for a conventional cradle. If the balls are initially touching, all balls recoil away from the end stop, at varying speeds.

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Section: Introductionmentioning

confidence: 99%

Newton’s cradle with an end stop

Cross

2020

Eur. J. Phys.

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Calculating the Duration of Impact When a Solid Sphere Collides on a Flat Rigid Wall

Kontomaris

Malamou

2021

The Physics Teacher

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Calculating the duration of a motion when the applied net force on the moving body changes with time is usually a challenging task. In most cases, the only example of the duration of a motion when the acceleration is not constant presented to introductory physics students worldwide is the example of harmonic motion. A discussion with respect to the calculation of the duration of motion in more complicated cases is usually avoided due to its mathematical complexity. However, in this paper, a new simplified yet accurate approach is presented for the calculation of the duration of impact when a solid sphere collides on a flat rigid wall. The analysis is based on the calculation of the average stiffness of the sphere. It is important to mention that the percentage difference between the simplified approach and the rigorous mathematical analysis was calculated to be only 2.5%.

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Bouncing a ball at rest on a surface

Abstract: A ball at rest on a surface can be made to bounce up by pushing it down then releasing the downward force as fast as possible. Measurements and calculations are presented to show how it can best be done.

Cited by 2 publications

References 3 publications

Newton’s cradle with an end stop

Newton’s cradle with an end stop

Calculating the Duration of Impact When a Solid Sphere Collides on a Flat Rigid Wall

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