Using the equation for Impact, can you explain the following: Why are car steering rods designed to collapse? Why are highway guard rails designed to crumple up on impact? Why are traffic saftey barrels filled with water or sand?

The equation of impact is shown the impulse.

Explanation:

Given that,

The following statements,

(a). Why are car steering rods designed to collapse?

(b). Why are highway guard rails designed to crumple upon impact?

(c). Why are traffic safety barrels filled with water or sand?

We know that.

The equation of impact is shown the impulse.

Impulse :

Impulse is equal to the change in momentum.

In mathematically,

Where, F = force

= change in time

=change in momentum

We can be minimized of force of impact by maximizing the time of impact.

We can explain the following statements,

(a). Car steering rods designed to collapse for increases the time of impact, decreases the force of impact and reduce the damage caused

(b). Highway guard rails designed to crumple upon impact for increases the time of impact, decreases the force of impact and reduce the damage caused

(c). Traffic safety barrels filled with water or sand because they are increased the time impact.

Hence, The equation of impact is shown the impulse.

multiple

work: w = fd (given)

work done by chet   =50*1 = 50 j

work done by mika =40*2 = 80 j

work done by sara =30*1.5 = 45 j

work done by bill =60*0.5 = 30 j

students in order from the greatest amount of work done to the least is mika> chet> sara> bill

hence option (b) is correct.