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Answer: Ignoring air resistance, we know that the speed of a free-falling object is given by: change in speed = (accelearation due to gravity) × (time of fall) and that the distance fallen by an object dropped from rest is given by: distance fallen = 1 2 × (accelearation due to gravity) × (time of fall)2 To solve this problem, we only know the distance fallen. From this, we can figure out the time of the fall, and from that we can figure out the change in speed (starting from zero speed, the change in speed will be the final speed). Putting in 1,000 m in for the distance fallen and 10 m/s2 in for the acceleration due to gravity, and calling the time of the free-fall t, we have: 1, 000 m = 1 2 × (10 m/s2) × t2
What else can I help you with?
Why don't raindrops kill you when they fall from such high altitudes?
Raindrops don't generally hurt us having fallen all that way because they don't gain enough kinetic energy to do so. They do reach terminal velocity, and can even be pushed by downdrafts, but there's something else going on. A raindrop falling in air experiences deformation as it falls, and this changes its aerodynamics to prevent it from falling faster. The drop actually "flattens" somewhat as it falls toward a target below. Air resistance has "saved" us by deforming the droplet and limiting the amount of energy it can gain through its freefall.
Does the area of a parachute affect how fast it falls?
Yes, the area of a parachute directly affects how fast it falls. A larger parachute will create more air resistance, slowing down its descent, while a smaller parachute will fall faster due to less air resistance.
Which would experience more air resistance -a streamlined car travelling slowly or a lorry travelling fast?
A lorry travelling fast would experience more air resistance due to its high speed and larger surface area compared to a streamlined car travelling slowly. The faster an object moves through the air, the greater the resistance it encounters.
What most determines how fast an object will fall on earth?
The acceleration due to gravity, which is approximately 9.81 m/s^2 on Earth, is the primary factor that determines how fast an object will fall. Objects will fall faster if they have a higher acceleration due to gravity and slower if they have a lower acceleration due to gravity. Other factors like air resistance and the density of the object can also have a small effect on the speed of fall.
How fast would a human fall at 1000 ft minus all air resistance?
Assuming no air resistance, a human falling from 1000 feet would accelerate at a rate of 32.2 ft/s^2, which is the acceleration due to gravity. The time it would take for the human to reach the ground can be calculated using the free fall equation t = sqrt(2h/g), where h is the height (1000 ft) and g is the acceleration due to gravity (32.2 ft/s^2). This would give a time of approximately 8 seconds.
What falls really fast?
Objects that fall really fast include heavy items like bowling balls or anvils, as they are less affected by air resistance compared to lighter objects. In a vacuum, all objects fall at the same rate regardless of their mass due to the absence of air resistance. Additionally, phenomena such as raindrops or meteorites can also fall quickly when influenced by gravity.
How fast does a raindrop fall?
Depending on the size of the water droplets rain can fall anywhere from 5 to 18 MPH at sea level. Rain drops that would be large enough to fall faster than 18 MPH break up into smaller droplets once they reach this speed.
Why don't raindrops kill you when they fall from such high altitudes?
Raindrops don't generally hurt us having fallen all that way because they don't gain enough kinetic energy to do so. They do reach terminal velocity, and can even be pushed by downdrafts, but there's something else going on. A raindrop falling in air experiences deformation as it falls, and this changes its aerodynamics to prevent it from falling faster. The drop actually "flattens" somewhat as it falls toward a target below. Air resistance has "saved" us by deforming the droplet and limiting the amount of energy it can gain through its freefall.
If you fell off a cliff how fast would you fall?
fast
If it were not for air resistance why would it be dangerous to go outdoors on rainy days?
Possibly one for the physicists. But I think air resistance has nothing to do with it. I think gravity is what saves us. If you look at liquids in a weightless environment (there is air resistance)it just floats around, which means it can easily be inhaled and you would drwon. Air resistance prevents a falling object from reaching the full speed produced by the acceleration of gravity. It keeps falling raindrops from reaching bulletlike speeds. If air resistance were not present, raindrops would gain 10 meters per second of speed for every second of their freefall and thus reach the ground at dangerously high speeds�perhaps fast enough to puncture your skin. Not true, "The more compact and dense the object, the higher its terminal velocity will be. Typical examples are the following: raindrop, 25 ft/s, human being, 250 ft/s." I hardly think a raindrop falling at 25 feet per second is going to do much damage. Answer #2 is true. There is no "terminal velocity" without air resistance. Terminal velocity occurs when the force of air resistance is balanced against gravitational accelleration. The object continues to fall but at a fixed speed. Without air resistance, the object will fall faster and faster without bounds until a dangerous velocity is reached.
How fast do feathers fall?
Oh, dude, feathers fall at the same speed as any other object in a vacuum, which is about 9.8 meters per second squared. But in real life, with air resistance and all that jazz, feathers fall slower because they're all light and fluffy. So, like, they drift down at a leisurely pace, making them perfect for pillow fights and slow-motion movie scenes.
How fast in miles per hour would an object fall after 3 seconds?
At the end of 3 seconds, a falling object is falling at 65.8 mph faster than when it was released, ignoring air resistance.
Is it possible to run so fast you could dodge rain drops?
Sure... If you start running soon enough to get inside before the rain hits the ground. No. Running through the rain will only keep your head dryer. However, you will run into more rain drops with your body the faster you go.
Does the area of a parachute affect how fast it falls?
Yes, the area of a parachute directly affects how fast it falls. A larger parachute will create more air resistance, slowing down its descent, while a smaller parachute will fall faster due to less air resistance.
How fast would an egg fall from 15 feet?
1.5 sec
How fast does angel falls fall?
very fast how fast can u fall
How fast would you fall if you were next to the sun?
You would first burn to death long ago and be part of the sun. Still, you would fall fast enough that you would be crushed to death if it had a hard surface and wasn't 10,000 degrees F at the surface.
