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Related Concept Videos

Collisions in Multiple Dimensions: Introduction01:05

Collisions in Multiple Dimensions: Introduction

It is far more common for collisions to occur in two dimensions; that is, the initial velocity vectors are neither parallel nor antiparallel to each other. Let's see what complications arise from this. The first idea is that momentum is a vector. Like all vectors, it can be expressed as a sum of perpendicular components (usually, though not always, an x-component and a y-component, and a z-component if necessary). Thus, when the statement of conservation of momentum is written for a problem,...
Types Of Collisions - I01:04

Types Of Collisions - I

When two objects come in direct contact with each other, it is called a collision. During a collision, two or more objects exert forces on each other in a relatively short amount of time. A collision can be categorized as either an elastic or inelastic collision. If two or more objects approach each other, collide and then bounce off, moving away from each other with the same relative speed at which they approached each other, the total kinetic energy of the system is said to be conserved. This...
Types of Collisions - II01:19

Types of Collisions - II

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...
Collisions in Multiple Dimensions: Problem Solving01:06

Collisions in Multiple Dimensions: Problem Solving

In multiple dimensions, the conservation of momentum applies in each direction independently. Hence, to solve collisions in multiple dimensions, we should write down the momentum conservation in each direction separately. To help understand collisions in multiple dimensions, consider an example.
A small car of mass 1,200 kg traveling east at 60 km/h collides at an intersection with a truck of mass 3,000 kg traveling due north at 40 km/h. The two vehicles are locked together. What is the...
Elastic Collisions: Case Study01:15

Elastic Collisions: Case Study

Elastic collision of a system demands conservation of both momentum and kinetic energy. To solve problems involving one-dimensional elastic collisions between two objects, the equations for conservation of momentum and conservation of internal kinetic energy can be used. For the two objects, the sum of momentum before the collision equals the total momentum after the collision. An elastic collision conserves internal kinetic energy, and so the sum of kinetic energies before the collision equals...
Elastic Collisions: Introduction01:00

Elastic Collisions: Introduction

An elastic collision is one that conserves both internal kinetic energy and momentum. Internal kinetic energy is the sum of the kinetic energies of the objects in a system. Truly elastic collisions can only be achieved with subatomic particles, such as electrons striking nuclei. Macroscopic collisions can be very nearly, but not quite, elastic, as some kinetic energy is always converted into other forms of energy such as heat transfer due to friction and sound. An example of a nearly...

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Related Experiment Video

Updated: Jun 18, 2026

Laboratory Drop Towers for the Experimental Simulation of Dust-aggregate Collisions in the Early Solar System
09:44

Laboratory Drop Towers for the Experimental Simulation of Dust-aggregate Collisions in the Early Solar System

Published on: June 5, 2014

When worlds collide.

Clive E Adams1, Mauricio Silva de Lima

  • 1The Sir Colin Campbell Building, University of Nottingham Innovation Park, Nottingham NG7 2TU, UK. clive.adams@nottingham.ac.uk

Trials
|December 1, 2009
PubMed
Summary
This summary is machine-generated.

The UK needs better collaboration in health care research. Overcoming barriers between clinicians, academics, patients, and industry is crucial for timely, meaningful evaluative health research.

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Area of Science:

  • Health Services Research
  • Clinical Evaluation Studies
  • Healthcare Policy and Innovation

Background:

  • The United Kingdom possesses a rich history of pioneering evaluative health care research.
  • Significant obstacles hinder effective collaboration among clinicians, academics, patients, and industry stakeholders.
  • This impedes the UK's ability to lead in clinical research for care evaluation.

Discussion:

  • Addressing the impediments to collaboration is essential for the UK to reclaim its leading position in evaluative health care research.
  • Explicit encouragement from UK National Health Service (NHS) funders highlights the urgency for improved interdisciplinary teamwork.
  • Developing enhanced collaborative strategies is vital for producing broader and more impactful research outcomes.

Key Insights:

  • Collaboration barriers in UK health research require urgent attention.
  • Interdisciplinary teamwork is key to advancing evaluative health care research.
  • NHS funding bodies are actively promoting collaborative research initiatives.

Outlook:

  • Fostering stronger partnerships between clinicians, academics, patients, and industry is paramount.
  • Implementing new collaborative models will accelerate the production of high-quality research.
  • The UK can re-establish its global leadership in health care evaluation through concerted collaborative efforts.