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What is the unit for air resistance?
The unit for air resistance is Newtons (N), which measures the force exerted by air on an object in the opposite direction of its motion.
What two factors affect air resistance on a falling object?
constant force down (newtons) = mass (kg) * acceleration due to gravity ((m/s)/s) > variable force up (newtons) = velocity2 * drag coefficient > terminal velocity is where forces balance
How does air resistance affect objects moving through the air?
Air resistance, also known as drag, slows down the motion of objects through the air by pushing against them in the opposite direction of their motion. The larger the surface area of the object facing the direction of motion, the greater the air resistance. This force ultimately causes objects to lose kinetic energy and slow down.
When a 10 newton falling body encounters 4 newtons of air resistant the net force on the body is?
6 newtons, so it keeps accelerating. As it does, the air resistance increases until it reaches 10 newtons so then the net force is zero and then the fall continues at constant speed (the terminal velocity).
A 20 N falling object encounters 4 N of air pressure what is the magnitude of the net force on the object?
The net force on the falling object is the difference between the gravitational force pulling it down (20 N) and the air resistance force pushing against it (4 N). Therefore, the magnitude of the net force on the object is 16 N.
How powerful is air resistance?
aprroximately 9.81 Newtons as the upwards and downwards forces must balance and the acceleration of free-fall is 9.81 newtons therefore the air resistance must be equal.
What is the unit for air resistance?
The unit for air resistance is Newtons (N), which measures the force exerted by air on an object in the opposite direction of its motion.
How are newton's laws used in football?
newtons laws are contributed by while the foot ball is in the air inertia acts on it.
Explain why friction changes the the Velocity of objects and why friction can make observing Newton's first law of motion difficult?
newtons laws are idealised and don't involve external forces like friction and air resistance
What can air resistence do?
Offers a force opposed to motion, amount (newtons) is derived from: (Velocity 2 * drag coefficient) + rolling resistance
What two factors affect air resistance on a falling object?
constant force down (newtons) = mass (kg) * acceleration due to gravity ((m/s)/s) > variable force up (newtons) = velocity2 * drag coefficient > terminal velocity is where forces balance
How does air resistance affect objects moving through the air?
Air resistance, also known as drag, slows down the motion of objects through the air by pushing against them in the opposite direction of their motion. The larger the surface area of the object facing the direction of motion, the greater the air resistance. This force ultimately causes objects to lose kinetic energy and slow down.
When a 10 newton falling body encounters 4 newtons of air resistant the net force on the body is?
6 newtons, so it keeps accelerating. As it does, the air resistance increases until it reaches 10 newtons so then the net force is zero and then the fall continues at constant speed (the terminal velocity).
Example of Air resistance?
Calculate drag coefficient of freefaller (prior to chute opening)>(constant) force down (in newtons) due to gravity = mass * acceleration due to gravity, say 80 * 10 = 800 newtons.>The up force (newtons) = velocity2 * drag coefficient>At terminal velocity (where up and down forces balance) the up force = 800 newtons, say terminal velocity = 70 metres / second>800 = 4900 * drag coefficient>Drag coefficient = 800 / 4900>Drag coefficient = 0.163
How does shape and air resistance can effect the laws of gravity?
It doesn't. The force of gravity depends on the masses involved, and their distance. However, air resistance can introduce other forces, that counteract the force of gravity.
A 20 N falling object encounters 4 N of air pressure what is the magnitude of the net force on the object?
The net force on the falling object is the difference between the gravitational force pulling it down (20 N) and the air resistance force pushing against it (4 N). Therefore, the magnitude of the net force on the object is 16 N.
How is algebra used in skydiving?
Fnet=Fgravity-Fair resistance At terminal velocity Force Net = 0 during this time Fgravity = Fair resistance if you weight is 85kg Fgravity = Mass x G = 85x 9.8 = 833N your at terminal velocity when Air resistance is equal to 833 Newtons
