# Car collision and specific heat

• mawalker
In summary, two cars collide head on at 80 km/hr and all their kinetic energy is transformed into thermal energy. The question is asked about the temperature increase of each car, assuming their specific heat is that of iron. A link is provided for further calculations and understanding.
mawalker
Two cars collide head on while each is traveling at 80 km/hr. Suppose all their kinetic energy is transformed into the thermal energy of the wrecks. What is the temperature increase of each car? Assume the car's specific heat is that of iron. Any thoughts?

mawalker said:
Two cars collide head on while each is traveling at 80 km/hr. Suppose all their kinetic energy is transformed into the thermal energy of the wrecks. What is the temperature increase of each car? Assume the car's specific heat is that of iron. Any thoughts?
Calculate the kinetic energy of the cars (answer in terms of mass, m). Figure out how that much energy would change the temperature of a lump of iron of mass 2m

i'm still lost

## 1. How does a car collision affect the specific heat of the car and its contents?

A car collision can greatly increase the specific heat of the car and its contents due to the transfer of kinetic energy during impact. The sudden increase in temperature can cause materials to expand, melt, or even vaporize, leading to changes in their specific heat.

## 2. What factors influence the specific heat of a car during a collision?

The specific heat of a car during a collision can be influenced by a variety of factors, including the speed and force of impact, the materials involved, and the design and structure of the car.

## 3. Can the specific heat of a car affect the severity of a collision?

While the specific heat of a car can be greatly impacted by a collision, it is not a determining factor in the severity of the collision itself. Other factors such as the speed and angle of impact, as well as the design and safety features of the car, play a larger role in the outcome of a collision.

## 4. How can knowledge of specific heat be useful in understanding car collisions?

Understanding the specific heat of materials involved in a car collision can provide insight into the transfer of energy and potential effects on the car and its contents. It can also help in identifying potential hazards and designing safer cars.

## 5. Is the specific heat of a car constant during a collision?

No, the specific heat of a car and its contents can vary during a collision due to changes in temperature and phase changes of materials. Additionally, different parts of the car may have different specific heats, leading to variations in energy transfer and effects during a collision.

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