Civil Engineering (CE) Exam > Civil Engineering (CE) Videos > Engineering Mechanics > Collisions - Kinetics of a Particle
Collisions - Kinetics of a Particle Video Lecture | Engineering Mechanics - Civil Engineering (CE)
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FAQs on Collisions - Kinetics of a Particle Video Lecture - Engineering Mechanics - Civil Engineering (CE)
| 1. What is the definition of collision in the context of kinetics of a particle? |  |
Ans. In the context of kinetics of a particle, a collision refers to the event where two or more particles come into contact with each other, resulting in a change in their motion or energy. Collisions can be classified as elastic or inelastic, depending on whether the total kinetic energy of the system is conserved or not.
| 2. How is the momentum of a particle affected during a collision? | |
Ans. During a collision, the momentum of a particle can be affected by the forces acting on it. If there is no external force acting on the particle, the momentum before and after the collision remains constant, according to the law of conservation of momentum. However, if there are external forces present, the momentum of the particle can change.
| 3. What is the difference between elastic and inelastic collisions? | |
Ans. In an elastic collision, both the momentum and kinetic energy of the system are conserved. This means that the total kinetic energy of the particles before the collision is equal to the total kinetic energy after the collision. In an inelastic collision, on the other hand, the total kinetic energy is not conserved. Some of the kinetic energy is converted into other forms, such as heat or deformation.
| 4. How can the type of collision be determined in a given situation? | |
Ans. The type of collision can be determined by analyzing the before and after conditions of the system. If the total kinetic energy of the system remains the same, it is an elastic collision. If the kinetic energy changes, it is an inelastic collision. This can be calculated by analyzing the velocities and masses of the particles involved in the collision.
| 5. What are some real-life examples of collisions? | |
Ans. Collisions are common in our everyday lives. Some examples include a car crash, a ball bouncing off a wall, or two billiard balls colliding on a table. These collisions can be analyzed using the principles of kinetics of a particle to understand the changes in momentum and energy during the event.
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