0
Because the drag coefficient increases when the chute opens.
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Force down (newtons) = mass (m) * acceleration due to gravity (g)
Force up (newtons) = velocity2 * drag coefficient
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Terminal velocity is where up and down forces balance.
Say mass (m) = 100 kg, g = 9.82, then force down = m * g = 982 newtons, say terminal velocity (v) prior to chute opening = 70 m / s, then force down = force up so 982 = v2 * drag coefficient, so drag coefficient = 982 / 4900 = 0.2
without chute.
Terminal velocity with chute open, say 8 metres / sec, so drag coefficient
= 982 / 64 = 15.34 with chute open.
What else can I help you with?
What force would change if a parachutist opens the parachute during the fall What will happen to the net force and acceleration over time after that?
When the parachutist opens the parachute, the air resistance force will increase. This will reduce the net force acting on the parachutist, causing a decrease in acceleration over time. As the parachute slows the descent, the net force continues to decrease until the parachutist reaches a terminal velocity.
When is acceleration equals half of the sum of initial and final velocities?
If you have a particle with constant acceleration, and you add the initial and final velocities and then divide them by two, what you get is the average velocity of the particle in that period of time.
How do the escape velocities of the jovian planets compare to the terrestrial planets?
The Jovian planets have much higher escape velocities.
What is the maximum terminal velocity of an asteroid?
Different asteroids can travel at different speeds, but the average one travels at about 25 kilometers per second. They speed up as they approach the Earth or another body with substantial gravity.
What will be the relative velocity if two electrons approach each other?
The relative velocity of two electrons approaching each other would be the sum of their individual velocities. Given that both electrons have the same charge and mass, their velocities would be equal in magnitude but opposite in direction. This would result in a combined relative velocity of zero when they meet.
When A parachutist reaches it terminal speed?
When a parachutist reaches terminal speed, the force of air resistance pushing up on the parachutist equals the force of gravity pulling the parachutist downward. At this point, the net force on the parachutist is zero, resulting in a constant velocity.
When a parachutist is moving with a constant speed what happens?
There are two possibilities. One is that he is falling at a constant (positive) speed. In this case, the downward force of gravity is exactly offset by the upward force of drag or air resistance. The parachutist is said to have reached terminal velocity. The second possibility is that he is moving downwards at a constant speed of zero. He has hit the ground! The parachutist may be said to have reached a terminal situation!
Are Terminal velocities balanced or unbalanced?
Terminal velocities are balanced forces. At terminal velocity, the upward force of air resistance acting on an object falling through the air is equal in magnitude to the downward force of gravity, resulting in an equilibrium where the object falls at a constant speed.
How can you calculate the resulant velcity of two velocities in the same direction?
To calculate the resultant velocity of two velocities in the same direction, simply add the magnitudes of the two velocities together. The direction of the resultant velocity will be the same as the two original velocities.
Why does a heavy parachutist fall faster than a light parachutist who wears a parachute of the same size?
A heavy parachutist falls faster than a light parachutist wearing a parachute of the same size due to differences in their terminal velocities. Terminal velocity is the constant speed reached by an object when the force of gravity pulling it downward equals the force of air resistance pushing upward. The heavier parachutist experiences a greater gravitational force, leading to a higher terminal velocity compared to the lighter parachutist. This results in the heavier individual falling faster despite wearing a parachute of the same size.
What force would change if a parachutist opens the parachute during the fall What will happen to the net force and acceleration over time after that?
When the parachutist opens the parachute, the air resistance force will increase. This will reduce the net force acting on the parachutist, causing a decrease in acceleration over time. As the parachute slows the descent, the net force continues to decrease until the parachutist reaches a terminal velocity.
How do you calculate the resultant velocity of two velocities in the same direction.?
To calculate the resultant velocity of two velocities in the same direction, simply add the two velocities together. The resultant velocity will be the sum of the individual velocities.
How does air resistance affect the way the parachutist falls?
Air resistance, also known as drag, affects the way a parachutist falls by slowing down their descent. As the parachutist falls, the force of air resistance increases with speed, eventually reaching a point where it equals the force of gravity pulling the parachutist down. This creates a situation known as terminal velocity, where the parachutist falls at a constant speed without accelerating further.
What are the 2 forces acting on a parachutist?
Gravity (downwards), and air resistance (upwards).
What are the directons in which the forces are acting when a parachutist when he is falling?
When a parachutist is falling, the forces acting on them are gravity pulling them downward and air resistance pushing against their fall. Gravity is the dominant force causing the parachutist to accelerate towards the ground while air resistance counteracts this force, eventually leading to a terminal velocity where the forces are balanced.
What is the terminal velocity of falling objects in water?
Terminal velocity of falling objects in water depends on the object's shape, size, and density, as well as the water's viscosity. Generally, small objects like spheres have lower terminal velocities due to less drag, while larger or less streamlined objects will have higher terminal velocities. The terminal velocity is reached when the force of gravity on the object is balanced by the drag force acting in the opposite direction.
How does the air resistance affect the parachutist's fall?
It is air resistance which slows the rate at which a parachutist falls, turning what would otherwise be a fatal fall into a controlled landing.
