The impulse allows to calculate which material is better to reduce the damage in a crash are:
- Measure the speeds, time and calculate the force for each deformation, with the relationship.
- The best deformation zone is the one that gives the least force.
* The most important is that the system starts from the same point so that the speed before the crash is always the same.
* The second is that the mass of the car plus the training materials is always the same.
* Check the zero and streamline of the equipment before measurements.
The student can use the relationship between impulse and momentum variation.
I = ∫ F dt = Δp
Where I is the momentum, F the force, t the time and Δp the variation of the momentum.
The momentum is defined by the product of the mass of the vehicle and the speed.
p = m v
Where m is the mass and v the velocity.
Since you want the average force, you can take the force out of the integral.
F t = m v_f -m v₀
They indicate that the system can measure the speed just before and after the collision with the wall, it is also capable of measuring the time of the collision, therefore we can calculate the force with the expression.
[tex]F = m \ \frac{v_f - v_o}{t}[/tex]
therefore the student can calculate the force for each type of deformation zone. The best deformation zone is the one that gives the least force.
- Several cautions must be taken in the experiment:
* Exit from the same point each time.
* Keep the mass constant for the whole experiment, for this, care must be taken with the different weights of each material.
* Check that the equipment is properly calibrated and reset to zero before starting each measurement.
Learn more about impulse here: brainly.com/question/904448
