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The faster you go the more stuff you run into. Air resistance is a real thing.
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∙ 13y ago
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Why parachutists do not fall with constant accelerating motion?
Due to air resistance as the resistance is directly proportional to the speed but at certain speed called transitional speed or critical speed the resistance become directly proportional to square the speed so the resistance increase decreasing the falling speed.
What two forces are equal when an object is at its terminal speed?
Gravity and air resistance
What occurs when a force causes the speed of an object to decrease?
the frictional forces increase
Why won't a skydiver's speed continue to increase until his or her parachute opens?
Once a skydiver jumps off the plane, they will begin picking up speed. However, as the speed of the skydiver increases, the amount of air resistance acting upon them will also increase. The skydiver will continue to accelerate while his or her weight is greater than the air resistance. When the force of the air resistance becomes equal to the weight of the skydiver, the skydiver will stop accelerating and will continue falling at a constant speed, this is known as the terminal velocity. While travelling at terminal velocity, the skydiver will be able to adjust his or her body position in a way that will increase or decrease the air resistance and allow the diver to alter their speed. Releasing his or her parachute will drastically increase the amount of air resistance and therefore slow their descent significantly.
Why does a person loss speed if he opens parachute?
The parachute will increase air resistance, compared to the person alone.
How does water or air resistance against an object increase speed?
It doesn't increase speed. The word resistance means to resist. In other words it decreases speed.
Why parachutists do not fall with constant accelerating motion?
Due to air resistance as the resistance is directly proportional to the speed but at certain speed called transitional speed or critical speed the resistance become directly proportional to square the speed so the resistance increase decreasing the falling speed.
What two forces are equal when an object is at its terminal speed?
Gravity and air resistance
Are there any forces when a car goes at a constant speed?
forward thrust from the driving wheels, which is equal ( and opposite ) to the frictional forces from air resistance and rolling resistance ( tyres ) .
What resulted from General Joseph Hooker's addition of cavalry to the Union army?
General Joseph Hooker's addition of cavalry to the Union army helped to increase the speed of forces.
What occurs when a force causes the speed of an object to decrease?
the frictional forces increase
Why won't a skydiver's speed continue to increase until his or her parachute opens?
Once a skydiver jumps off the plane, they will begin picking up speed. However, as the speed of the skydiver increases, the amount of air resistance acting upon them will also increase. The skydiver will continue to accelerate while his or her weight is greater than the air resistance. When the force of the air resistance becomes equal to the weight of the skydiver, the skydiver will stop accelerating and will continue falling at a constant speed, this is known as the terminal velocity. While travelling at terminal velocity, the skydiver will be able to adjust his or her body position in a way that will increase or decrease the air resistance and allow the diver to alter their speed. Releasing his or her parachute will drastically increase the amount of air resistance and therefore slow their descent significantly.
Why does a person loss speed if he opens parachute?
The parachute will increase air resistance, compared to the person alone.
Which direction does the parachutist go if gravity is greater than air resistance?
The parachutist will go down, of course. If gravity is greater than air resistance, then the parachutist would accelerate (his speed would increase). This would increase air resistance, up to the point where gravity and air resistance are in balance.
Why does friction increase as the speed increases?
because the forces creating the friction are rub faster(harder).
If a graph curves upward how does that affect the speed of an object?
This entirely depends on what the graph is charting, but generally, an upward curve reflects an increase in some quantity like distance or acceleration and is a positive correlation with speed increase. However, it could be an increase of resistance or friction, which would decrease speed.
Explain the term balanced force and unbalanced force?
balanced forces are when the two opposite forces are equal and cause no change to the object e.g a car at a steady speed. unbalanced forces would cause the car to increase or decrease in speed
