Because terminal velocity is an objective concept universal to all systems in which an object may engage in near free fall obstructed only by atmospheric resistance, it does not have any inherent "advantages" or "disadvantages." Person A might consider an advantage of terminal velocity to be that an aircraft component that came loose during flight wasn't moving quickly enough to penetrate his roof and destroy his carefully furnished foyer; Person B might view this as a disadvantage on the grounds that he never liked Person A's interior decorating skills.
The air resistance on the skydiver at terminal velocity is 500 N. At terminal velocity, the air resistance on the skydiver is equal in magnitude to the gravitational force pulling them downward. This balance of forces results in a constant velocity.
The velocity at the starting point when an object tries to attain terminal velocity is zero. As the object falls, it accelerates due to gravity until air resistance builds up to match the force of gravity, resulting in a constant terminal velocity being reached.
At terminal velocity, the force of air resistance is equal in magnitude to the weight of the object. Since the weight of the bag of nails is 100 N, the air resistance on the bag of nails falling at terminal velocity is also 100 N.
At terminal velocity, the air resistance acting on the falling 100-N box of nails would be equal in magnitude to the weight of the box, or 100 N. This means that the net force acting on the box would be zero, resulting in a constant velocity.
Air resistance doesn't change with weight. It changes with speed and shape. More speed, more air resistance. If the shape has a lot of surface are to drag the air, it is more resistant, but this factor does not change with weight or speed. This is why terminal velocity is possible. As the object falls, its speed increases, so its resistance increases also, because resistance depends directly on speed. But as this resistance is increasing, the gravity is staying the same. So, eventually, resistance catches up with gravity and cancels it out, causing an end to acceleration, or constant speed.
The air resistance on the skydiver at terminal velocity is 500 N. At terminal velocity, the air resistance on the skydiver is equal in magnitude to the gravitational force pulling them downward. This balance of forces results in a constant velocity.
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The velocity at the starting point when an object tries to attain terminal velocity is zero. As the object falls, it accelerates due to gravity until air resistance builds up to match the force of gravity, resulting in a constant terminal velocity being reached.
At terminal velocity, the force of air resistance is equal in magnitude to the weight of the object. Since the weight of the bag of nails is 100 N, the air resistance on the bag of nails falling at terminal velocity is also 100 N.
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At terminal velocity, the air resistance acting on the falling 100-N box of nails would be equal in magnitude to the weight of the box, or 100 N. This means that the net force acting on the box would be zero, resulting in a constant velocity.
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"Terminal velocity" means that it no longer accelerates; forces are in balance. This is only possible if the upward force is also 50 N. (The "50 N weight" represents the downward force of gravity.)
500 N is pressumably the weight, due to gravity. "Terminal velocity" means that the forces are in balance; the total force acting on the skydiver are zero. This is only possible if there is a 500 N force due to friction, to counteract the weight.