The problem of collision in two dimension is more abstract because
The problem of collision in two dimension is more abstract because Correct Answer It has more number of unknown variable.
Correct option-1
Concept:
Collision-
- The meaning of the term ‘collision’ in our everyday life ‘striking’, in physics it does not necessarily mean one particle striking against another.
- Indeed two particles may not even touch each other and may still be said to collide.
- A collision occurs when two bodies come in direct contact with each other.
- In this event, two or more bodies exert forces on each other in about a relatively short time.
- The collision is in fact a redistribution of the total momentum of the particles
Types of collisions:
On the basis of direction, the collisions are of two types-
1. One-dimensional collision or Head-on collision:
A collision in which the colliding particles move along a straight line before and after the collision.
Types of Collision on the basis of kinetic energy conservation:
The law of conservation of momentum holds true in the collision between two masses but,
there may be some collisions in which Kinetic Energy is not conserved.
Depending on energy conservation, Collisions are basically of two types:
1. Elastic Collision:
- In the elastic collision total momentum, total energy, and total kinetic energy are conserved.
- Although, the total mechanical energy is not converted into any other form of energy,
- As the forces involved in the short interaction are conserved in nature.
2. Inelastic Collision:
- In the inelastic collision, the objects stick to each other or move in the same direction.
- The total kinetic energy of the system containing colliding objects is not conserved but the total momentum and energy are conserved.
- During Inelastic collision, the energy is transformed into other energy forms like heat and light.
3.Perfectly plastic collision:
- The collision in which particles get stuck together after the collision.
- The loss is energy is maximum in this collision.