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Related Concept Videos

Projectile Motion: Example01:18

Projectile Motion: Example

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The theory of projectile motion is very useful for players of several sports to improve their performance. For example, a javelin thrower needs to throw their javelin in such a way that it travels as far as possible. The javelin thrower takes a short run-up to increase the initial speed of the javelin. The range of a projectile is at its maximum at a 45° angle so javelin throwers try to angle their throw as close to 45° as possible.
When we speak of the range (R) of a projectile on...
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Projectile Motion01:20

Projectile Motion

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An object thrown in the air follows a parabolic path under the influence of Earth's gravitational force. The motion of such an object is called projectile motion, and the object itself a projectile. The parabolic path followed by the projectile is called the trajectory. Some common examples of projectile motion are the launching of fireworks, a golf ball in the air, meteors entering the Earth's atmosphere, and the firing of bullets.
When an object falls under gravity and has no...
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Projectile Motion: Equations01:26

Projectile Motion: Equations

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Projectile motion is commonly observed in our day-to-day life. For example, a basketball thrown by a player, an arrow shot from a bow, and kids jumping into the pool, all undergo projectile motion.
Any projectile motion problem can be solved by using the following strategy:
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Motion of a Projectile01:23

Motion of a Projectile

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Projectile motion becomes evident when a player kicks the ball into the air. The launch angle, or the angle at which the ball is kicked, plays a crucial role in determining the trajectory of the projectile. As the ball soars through the air, influenced solely by gravity, its motion can be dissected into two independent velocity components: the horizontal and the vertical.
Horizontal motion, governed by the initial kick, maintains a constant velocity throughout the flight of the soccer ball.
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Impact: Problem Solving01:26

Impact: Problem Solving

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In an experiment conducted during a Mars mission, a rover propels a projectile with an initial velocity, and the projectile rebounds after colliding with the Martian surface. To ascertain the maximum height attained by the projectile after this collision, the known restitution coefficient and acceleration due to gravity are employed.
By designating the launch point as the origin and utilizing kinematic equations, the vertical component of the projectile's velocity at the point of impact is...
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Types of Collisions - II01:19

Types of Collisions - II

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When two or more objects collide with each other, they can stick together to form one single composite object (after collision). The total mass of the object after the collision is the sum of the masses of the original objects, and it moves with a velocity dictated by the conservation of momentum. Although the system's total momentum remains constant, the kinetic energy decreases, and thus such a collision is an inelastic collision. Most of the collisions between objects in daily life are...
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Updated: May 17, 2025

A Coupled Experiment-finite Element Modeling Methodology for Assessing High Strain Rate Mechanical Response of Soft Biomaterials
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Introduction to Ballistic Injuries.

Winston R Owens1,2, Vamsi C Mohan1,2, Diego M Quirarte1,2

  • 1Division of Plastic Surgery, Michael E. DeBakey Department of Surgery, Baylor College of Medicine, Houston, Texas.

Seminars in Plastic Surgery
|March 31, 2025
PubMed
Summary
This summary is machine-generated.

Firearm-related trauma is a US public health crisis, disproportionately affecting minorities. Nonmedical factors significantly impact gun trauma risk and long-term quality of life for survivors.

Keywords:
GSWballistic injuriesballisticsgunshot woundplastic surgeonsquality of lifesocial determinants of healthtrauma

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Area of Science:

  • Public Health
  • Trauma Surgery
  • Epidemiology

Background:

  • Firearm-related trauma represents a significant and escalating public health crisis in the United States.
  • Minority populations experience disproportionately higher rates of firearm-related injuries and mortality.
  • Nonmedical factors are crucial in determining an individual's vulnerability to gun trauma.

Purpose of the Study:

  • To review key aspects of firearm-related trauma, including ballistic terminology, epidemiology, and social determinants of health.
  • To examine the impact of gunshot wounds on survivors' quality of life.
  • To highlight the multidisciplinary approach required for managing head gunshot wounds.

Main Methods:

  • Literature review of ballistic terminology.
  • Epidemiological data analysis of firearm-related trauma.
  • Exploration of social determinants of health in relation to gun violence.
  • Assessment of quality of life outcomes for gunshot wound survivors.

Main Results:

  • Firearm-related trauma rates are increasing annually in the US.
  • Minority groups are disproportionately affected by gun violence.
  • Head gunshot wounds necessitate multidisciplinary care for optimal outcomes.
  • Complications extend beyond physical damage, causing lasting psychological, social, and economic burdens.

Conclusions:

  • Firearm-related trauma is a complex public health issue with significant social and economic implications.
  • Understanding social determinants of health is vital for mitigating gun trauma risk.
  • Survivors face multifaceted challenges impacting their long-term quality of life.