0
Drop any object from a plane and the downward force due to the mass will eventually be matched by an upward force due to air resistance (terminal velocity). This terminal velocity depends on the objects drag coefficient, what the parachute does is present a drag coefficient sufficient to give the required terminal velocity for landing .
>
You need no more than say 6 metres / second landing velocity, effectively this is the terminal velocity with the chute open.
Using body mass of 80 kg and acceleration due to gravity of 10 (m/s)/s,
this gives a downward force of ( 80 * 10 ) 800 newtons.
To balance this at landing velocity, you need a drag coefficient calculated from:
800 = velocity2 * drag coefficient , so:
drag coefficient = 800 / velocity2 = 22.22
>
Compare this to the pre chute deployment velocity of around 80 metres / second, giving a drag coefficient of:
drag coefficient = 800 / 6400 = 0.125
What else can I help you with?
How do parachutes slow something down?
Parachutes slow something down by increasing air resistance, which creates drag as the object falls through the air. The large surface area of the parachute catches the air, causing it to exert an upward force that counteracts gravity and reduces the speed of descent.
What is the name of the force you exert towards you?
The force you exert towards yourself is called self-force or self-interaction force.
The name of the force you exert on a sponge when you squeeze it is called?
The force you exert on a sponge when you squeeze it is called compression force.
What is The force that you exert on a lever called?
The force that you exert on a lever can be called the effort force. The lever has three parts. They are: the fulcrum, the load, and the effort force. This can also be classified as the input force. The force that you exert to perform a task is known as the input force.
Do you exert more force when you are closer to the fulcrum?
do you exert more force when you are further from the fulcrum
How do parachutes slow something down?
Parachutes slow something down by increasing air resistance, which creates drag as the object falls through the air. The large surface area of the parachute catches the air, causing it to exert an upward force that counteracts gravity and reduces the speed of descent.
If everything exerts a force why do you not get pulled by it?
The objects with bigger masses exert more pulling force. However, even though all the matter around us exert a force, their masses are too small for them to exert a 'feelable' force. But yes, they do exert a force, but its negligible.
What is the name of the force you exert towards you?
The force you exert towards yourself is called self-force or self-interaction force.
The name of the force you exert on a sponge when you squeeze it is called?
The force you exert on a sponge when you squeeze it is called compression force.
What is The force that you exert on a lever called?
The force that you exert on a lever can be called the effort force. The lever has three parts. They are: the fulcrum, the load, and the effort force. This can also be classified as the input force. The force that you exert to perform a task is known as the input force.
Do you exert more force when you are closer to the fulcrum?
do you exert more force when you are further from the fulcrum
When you pull on a window shade you exert what?
You exert force when you pull on anything.
What force do the sun and the moon exert on the earth?
They exert Gravitational Force on each other. It is a force which is directly proportional to Mass of the object
What happens to the distance over which you exert your force?
The amount of force you exert remains the same, but the distance over which you exert the force can affect the work done. If you exert a force over a longer distance, you may do more work because the force acts over a greater distance. If the distance over which you exert the force is shorter, the work done may be less.
Suppose that you fall on a sidewalk while rollerblading Do you exert a force on the sidewalk Does the sidewalk exert a force on you Which of these forces may injure you?
Both, you exert a force onto the sidewalk, and the sidewalk "pushes back" with an equal, but opposite force.
When you exert a force on an object it exert the?
When you exert a force on an object, it exerts an equal and opposite force on you, as described by Newton's third law of motion. This means for every action force, there is a reaction force of equal magnitude in the opposite direction.
3 ways simple machines make work easier?
Machines make work easier by: -Changing the amount of force you exert -Changing the distance in which you exert your force -Changing the direction in which you exert your force
