Three cars are tested in a 16 m/s frontal crash. The results of the crash tests are shown below, with data indicating how much t
he crumple zone and safety cell of each car deformed. In each car the dummy was secured by the same seat belt and airbag. Which car did the best job of protecting the dummy?
1 answer:
You might be interested in
Refer to the diagram below.
This discussion operates under a basic analysis that overlooks air resistance and variations in the terrain the missile traverses.
Let V₀ be the launch velocity, at an angle θ to the horizontal.
The horizontal velocity component equals V₀ cosθ.
If the flight duration is
, then
where r represents the missile's range.
The time t at which the missile is at ground level is expressed by
where g signifies acceleration due to gravity.
t = 0 signifies the missile's launch. Thus
Consequently,
Typically, an angle of θ=45° is optimal for achieving maximum range, resulting in
This discussion applies more accurately to a scud missile than to a powered, guided missile.
Response:
Usually, θ=45°
This discussion operates under a basic analysis that overlooks air resistance and variations in the terrain the missile traverses.
Let V₀ be the launch velocity, at an angle θ to the horizontal.
The horizontal velocity component equals V₀ cosθ.
If the flight duration is
where r represents the missile's range.
The time t at which the missile is at ground level is expressed by
where g signifies acceleration due to gravity.
t = 0 signifies the missile's launch. Thus
Consequently,
Typically, an angle of θ=45° is optimal for achieving maximum range, resulting in
This discussion applies more accurately to a scud missile than to a powered, guided missile.
Response:
Usually, θ=45°