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Ignoring air resistance a rock in free fall will have a velocity of what after 4 seconds?
Wiki User
∙ 14y ago
The final velocity is simply acceleration x time.
The distance can be calculated from:
d = 1/2 acceleration time squared + (initial speed) x time
Since the initial speed is assume to be zero, you can simply ignore the second term.
The acceleration due to gravity is approximately 9.8 meters per second squared.
Wiki User
∙ 9y ago
Wiki User
∙ 14y agowell gravity is 9.8 meters per second per second so 156.8.
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What is the terminal velocity of body in a freely falling system?
Assuming the object starts at rest, it is zero. However, if the object is thrown upward or downward, its inital velocity will not be zero.
What is the difference between free fall and terminal velocity?
The difference between free fall and terminal velocity i that free fall is when an object is falling or descending through the air with little air resistance or drag. Terminal Velocity, on the other hand is when the resistance of air and the force of gravity balance each other out causing the object to reach a constant velocity. .
How gravity and air resistance are related to an object's terminal velocity?
Gravity and air resistance (drag) are the two opposing forces acting on the falling body. Gravity causes the object to accelerate (fall faster) while the air resistance causes the object to decelerate (fall slower). At a certain velocity called the terminal velocity these two forces are in balance and there is no change in falling speed.
How do the velocities of unbalanced weights compared?
When dropped the mass of an object does not affect the rate at which it falls. The size and shape may affect the wind resistance which affects falling velocity but heavier objects will not fall faster than lighter objects with all other variables constant.
How long to fall 3000 feet?
a max speed of 290kmh if you form you self lie a bullet but if you lie out 200kmhAnswer:There is no specific speed for free fall. It is dependent on many factors including the local attraction of gravity, air density, cross sectional area presented to the air flow and mass of the falling object. As a result cats can fall from tall buildings and not be hurt while people or ponies are reduced to a red mess.
Suppose an object in free fall is dropped from a building Its starting velocity is 0 Ignoring the effects of air resistance what is the speed of the object after falling 3 seconds?
29.4
When an object in free fall is dropped from a building Its starting velocity is 0 ms Ignoring the effects of air resistance what is the speed in ms of the object after falling 3 seconds?
194fps
A squirrel drops a nut over a cliff what is the velocity of the nut after 3 seconds?
Ignoring air resistance, the velocity of any object that goes off a cliff is 29.4 meters (96.5 feet) per second downward, after 3 seconds in free-fall.
An 8 kg mass is in free fall What is the velocity of the mass after 9 seconds?
An object dropped from rest will have a downward velocity of (9 g) = 88.2 meters per second after 9 seconds. Ignoring air resistance, the mass of the object is irrelevant. All masses fall with the same acceleration, and have the same downward velocity after any given period of time.
An 8-kg mass is in free fall. what is the velocity of the mass after 9 seconds?
An object dropped from rest will have a downward velocity of (9 g) = 88.2 meters per second after 9 seconds. Ignoring air resistance, the mass of the object is irrelevant. All masses fall with the same acceleration, and have the same downward velocity after any given period of time.
How many feet will a rock fall in 3 seconds?
Ignoring air resistance, that would be about 145 feet.
What Suppose an object in free fall is dropped from a building Its starting velocity is 0 ms Ignoring the effects of air resistance what is the speed in ms of the object after falling 3 seconds?
29.4 m/s
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.
How long it took King Kong to fall straight down from the top of a 260 m high building?
Ignoring air resistance, it would have taken 7.3 seconds, approx.
A bullet is fired horizontally with an initial velocity of 500ms at a target located 200m from the rifle Using the approximate value of g equals 10ms squared how far does the bullet fall in this time?
It takes the bullet (500/200) = 2.5 seconds of horizontal flight to reach the target.Under the influence of gravity for 2.5 seconds, ignoring air resistance, it will fall(1/2 G) (t)2 = (5) (6.25) = 31.25 meters
What is the terminal velocity of body in a freely falling system?
Assuming the object starts at rest, it is zero. However, if the object is thrown upward or downward, its inital velocity will not be zero.
What occurs when there is no air resistance?
-- "free fall" -- absence of terminal velocity
