0
How far will an object fall in 10 seconds when thrown downward at an initial velocity of 25 meters per second?
Wiki User
∙ 10y ago
We must neglect air resistance, since we don't know anything about the size
or shape of the object that would allow us to calculate air resistance, and also
because even if we had all the data we would not have a clue how to use it to
calculate air resistance.
We'll also assume that this experiment is conducted on or near the Earth's
surface, so that the acceleration of gravity is 9.8 m/s2 .
-- In 10 seconds, the object's downward speed will increase by 98 m/s , and it
will be falling at (98 + 25) = 123 m/s .
-- Its average speed during the 10 seconds is 1/2 of (25 + 123) = 74 m/s .
-- In 10 seconds, at an average speed of 74 m/s , it covers 740 meters.
Wiki User
∙ 10y ago
Add your answer:
Earn +20 pts
An arrow in flight has an initial velocity of 65 meters per second and 10 seconds later it has a velocity of 35 meters per second Which is the acceleration of the arrow?
Acceleration of the arrow is -3m/s2A = (velocity minus initial velocity) / time
What is the velocity of a ball in meters per second that drops from a roof and the speed was at 3.03 seconds?
If the ball was dropped from a roof and hit the ground 3.03 seconds later, then when it hit the groundits velocity was 29.694 meters (97.42 feet) per second (rounded) downward.
What is the velocity of a ball thrown straight down at 6 meters per second for 3 seconds?
The acceleration of gravity is 9.8 meters per second2 .In 3 seconds, gravity increases the falling speed by (9.8 x 3) = 29.4 meters per second.This particular ball already had a downward speed of 6 m/s when the 3 seconds began,so at the end of the 3 seconds, its velocity is(6) + (9.8 x 3) = 35.4 meters per second downward
A piece of metal has attained a velocity of 107.8 meters per second after falling for ten seconds what is its initial velocity?
the answer is 24-9 m/sec. yuor welcome
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.
A ball thrown vertically upward returns to the starting point in 8 seconds.find its initial velocity.?
A ball thrown vertically upward returns to the starting point in 8 seconds.-- Its velocity was upward for 4 seconds and downward for the other 4 seconds.-- Its velocity was zero at the turning point, exactly 4 seconds after leaving the hand.-- During the first 4 seconds, gravitational acceleration reduced the magnitude of its upward velocity by(9.8 meters/second2) x (4 seconds) = 39.2 meters per second-- So that had to be the magnitude of its initial upward velocity.
When acceleration occurs?
Acceleration occurs when velocity changes over time. The formula for it is as follows: a = (Vf - Vi) / t a: acceleration (meters/seconds2) Vf: Final velocity (meters/seconds) Vi: Initial Velocity (meters/seconds) t: Time (seconds)
An arrow in flight has an initial velocity of 65 meters per second and 10 seconds later it has a velocity of 35 meters per second Which is the acceleration of the arrow?
Acceleration of the arrow is -3m/s2A = (velocity minus initial velocity) / time
An apple falls from a tree What is its velocity after 1.6 seconds?
The acceleration of gravity is 9.8 meters per second2 downward. 1.6 seconds after falling from a branch near the surface of the Earth, the apple's speed is 15.68 meters per second. It's velocity is 15.68 meters per second downward. The tree has to be really tall, since the apple falls 12.544 meters (about 41 feet) in 1.6 seconds.
With what initial velocity would an object have to be thrown downward to fall 240 meters in 5 seconds?
During the 5 seconds, gravity adds 5G = (5 x 9.78) = 48.9 meters/sec to the object's downward speed.During that time, it's average downward speed is 1/2 of [ Vi + (Vi + 48.9) ] = Vi + 24.45 m/s.In 5 seconds it falls 5(Vi + 24.45) = 5Vi + 122.25 meters.5Vi + 122.25 = 240 meters5Vi = 240 - 122.25 = 117.75 metersVi = 117.75 / 5 = 23.55 meters per sec.
What is the velocity of a ball in meters per second that drops from a roof and the speed was at 3.03 seconds?
If the ball was dropped from a roof and hit the ground 3.03 seconds later, then when it hit the groundits velocity was 29.694 meters (97.42 feet) per second (rounded) downward.
What is the velocity of a ball thrown straight down at 6 meters per second for 3 seconds?
The acceleration of gravity is 9.8 meters per second2 .In 3 seconds, gravity increases the falling speed by (9.8 x 3) = 29.4 meters per second.This particular ball already had a downward speed of 6 m/s when the 3 seconds began,so at the end of the 3 seconds, its velocity is(6) + (9.8 x 3) = 35.4 meters per second downward
A piece of metal has attained a velocity of 107.8 meters per second after falling for ten seconds what is its initial velocity?
the answer is 24-9 m/sec. yuor welcome
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.
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 arrow is shot straight up at an initial velocity of 200 meters per seconds. How long will it be before beginning to fall?
40.81632653 or (rounded to the nearest 10th) 40.8 seconds
