If a bomb at rest explodes and splits into two equal fragments, the fragments will move in. one direction and with equal velocities.

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## Is Ke conserved in an explosion?

Explosions occur when energy is transformed from one kind e.g. chemical potential energy to another e.g. heat energy or kinetic energy extremely quickly. So, like in inelastic collisions, total kinetic energy is not conserved in explosions.

## Is explosion elastic or inelastic?

Explosion. An explosion is a special type of collision. It is a perfectly inelastic collision that seemingly happens in reverse.

## What is an explosion in physics momentum?

An object being fired from a cannon is also a collision where momentum must be conserved. As the momentum before the ‘collision’ is zero, the momentum after the collision is zero. In physics, this type of event is termed an explosion.

## Why is the momentum after an explosion zero?

When there is a bomb explosion, the momentum and kinetic energy are zero before the explosion. Thus the total momentum must remain zero, but the kinetic energy clearly increases after the explosion.

## Why is the total momentum of an exploding bomb zero before and after the explosion?

This is because the internal forces all occur in equal and opposite pairs (Newton’s 3rd Law). If we take the external forces into account, then momentum is not conserved. Even during the brief explosion, the bomb and its fragments are being accelerated downwards by gravity.

## When a bomb explodes at rest Which of the following quantity is conserved =?

Solution : a. Linear momentum is conserved since there are no external forces acting on the system.

## When a bomb at rest explodes into a large number of tiny fragments the total momentum of all the fragments?

By conservation of the momentum, the final momentum of the system is equal to the initial momentum of the system. Hence the total momentum of all the fragments is zero.

## Why does kinetic energy increase in explosion?

The chemical energy of the shell is converted to mechanical energy. The external potential energy gets converted to its kinetic energy due to explosion. So kinetic energy increases.

## What is Ke formula?

Kinetic energy is directly proportional to the mass of the object and to the square of its velocity: K.E. = 1/2 m v2. If the mass has units of kilograms and the velocity of meters per second, the kinetic energy has units of kilograms-meters squared per second squared.

## Is energy released in an explosion kinetic energy?

Thus, in a nuclear explosion, the energy is released in the form of kinetic energy.

## What energy changes occur during an explosion?

In an explosion, much of the potential energy stored in the chemical bonds of the explosive material is converted into kinetic energy of the gaseous products formed. (Other ambient gases, such as N2 in air, would also absorb that heat.)

## How do you find the velocity of an explosion?

## What are the 3 types of collision?

Collisions are of three types: perfectly elastic collision. inelastic collision. perfectly inelastic collision.

## Can kinetic energy increase after explosion?

Thus, we see that, although the momentum of the system is conserved in an explosion, the kinetic energy of the system most definitely is not; it increases. This interaction—one object becoming many, with an increase of kinetic energy of the system—is called an explosion.

## What is the formula for collision?

From the conservation of momentum, the equation for the collision between two objects is given by: m1v1 + m2v2 = m1v’1 + m2v’2. From this expression, the initial and final velocities can be derived.

## How do I calculate kinetic energy?

- Find the square of the velocity of the object.
- Multiply this square by the mass of the object.
- The product is the kinetic energy of the object.

## Is momentum a scalar or a vector?

momentum, product of the mass of a particle and its velocity. Momentum is a vector quantity; i.e., it has both magnitude and direction.

## Does an object with more mass have more momentum?

The momentum of an object varies directly with the speed of the object. Two objects of different mass are moving at the same speed; the more massive object will have the greatest momentum. A less massive object can never have more momentum than a more massive object.

## When a bomb explodes into two equal pieces These two pieces fly at just right angle to each other R linear momentum is conserved during explosion of bomb?

Solution : Explosion is due to internal forces . In law of conservation of linear momentum internal forces cannot change the momentum of the system . So after explosion `m_(1)v_(1)+m_(2)v_(2)=0 ” or “m_(1)v_(1)=-m_(2)v_(2)rArr` they will fly in opposite directions .

The rate of change in momentum of an item is proportional to the applied resultant force and is in the same direction as the applied resultant force. So, we can say that the rate of change of momentum is equal to the force applied. It is understood that, Momentum = mass × velocity .

## When a stationary bomb explodes due to internal forces then which of the following law is applied?

Law of Conservation – Problems L2.

## How is momentum conserved in a rocket launch?

Before launch, the total momentum of a rocket and its fuel is zero. During launch, the downward momentum of the expanding exhaust gases just equals in magnitude the upward momentum of the rising rocket, so that the total momentum of the system remains constant—in this case, at zero value.

## What is conserved when a shell explodes?

momentum of the system is conserved in all cases. momentum of the system is conserved only if the shell was moving horizontally.

## Who found momentum?

At this point, we introduce some further concepts that will prove useful in describing motion. The first of these, momentum, was actually introduced by the French scientist and philosopher Descartes before Newton.