# Question about how collisions deal with force.

• zeromodz
In summary, the force experienced by the wall in a collision with a 1000kg car moving at 20 m/s and a 500kg wall is determined by the change in momentum, which is affected by the velocity and mass of the objects involved. However, determining the exact forces can be difficult due to the non-constant and non-linear nature of acceleration in most collisions. Momentum can be used to find various information about collisions.
zeromodz
Well, I know we use momentum to determine the velocities after a collision, but what about forces. Say a 1000kg car going at 20 m/s hits a wall with a mass of 500kg. What determines how much force the wall will experience by the car if there is no acceleration in the horizontal direction? Only velocity and mass.

zeromodz said:
What determines how much force the wall will experience by the car if there is no acceleration in the horizontal direction? Only velocity and mass.
There is always a force if there is a change in momentum. The problem with determining the forces in collisions is that the acceleration is not constant or even linear in most cases .The cool thing is that you can find just about everything you want to know about a collision using momentum

## 1. What is the relationship between collisions and force?

Collisions involve a transfer of energy, and force is the rate at which energy is transferred. Therefore, the more force involved in a collision, the greater the energy transfer and the greater the impact.

## 2. How does the mass of an object affect the force of a collision?

According to Newton's second law of motion, force is directly proportional to an object's mass. This means that the more massive an object is, the more force it will exert in a collision.

## 3. Can collisions be elastic and inelastic at the same time?

Yes, a collision can have both elastic and inelastic components. In an elastic collision, kinetic energy is conserved, whereas in an inelastic collision, some kinetic energy is lost and converted to other forms of energy.

## 4. How does the velocity of an object affect the force of a collision?

Velocity is a determining factor in the amount of force involved in a collision. The faster an object is moving, the greater its momentum and the greater the force it will exert upon impact.

## 5. Why is the angle of collision important in determining force?

The angle of collision can affect the amount of force involved in a collision. A head-on collision will generally result in a greater force compared to a glancing collision, where the force is distributed over a larger area.

• Mechanics
Replies
6
Views
1K
• Mechanics
Replies
4
Views
906
• Mechanics
Replies
5
Views
830
• Mechanics
Replies
9
Views
1K
• Mechanics
Replies
3
Views
1K
• Mechanics
Replies
5
Views
948
• Mechanics
Replies
14
Views
1K
• Mechanics
Replies
9
Views
1K
• Mechanics
Replies
30
Views
1K
• Mechanics
Replies
5
Views
983