A rock is dropped from a cliff and hits the ground 6.0 seconds later How high is the cliff
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Definition1/15
176.4 meters
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Term1/15
A hammer is dropped off a roof of an apartment building that is 80 meters high How long will it take to hit the ground
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Definition1/15
The hammer will take square-root(2x80/9.8)= 4.04 seconds to hit
the ground.
The distance is related to the time by s=v0t + 1/2 gt^2 where
vo, the initial velocity is=0.
The answer is 4.04 or rounded is 4 seconds.
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Term1/15
A baseball is hit straight up at an initial velocity of 150MS. what will be the baseballs speed when it hits the ground
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Definition1/15
20.40
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Term1/15
A ball is thrown horizontally at 20 ms from the top of a cliff 50 meters high How long does it take the ball to reach the ground
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Definition1/15
Use the equation [ D = 1/2 g t2 ] .
D = the distance of free-fall = 50 m
g = acceleration of gravity = 9.8 m/sec2
t = time in free-fall
D = 1/2 g t2
2D / g = t2
t = sqrt( 2D / g ) = sqrt( 100 / 9.8 ) = 3.1944 seconds(rounded)
The horizontal velocity that the ball has when it's launched doesn't appear
in the calculation, because it makes absolutely no difference in the result.
Any effects of air resistance have been ignored in arriving at this solution.
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Term1/15
A ball is thrown horizontally from a cliff at a speed of 15 ms and strikes the ground 45 meters from the base of the cliff How long was the ball in the air
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Definition1/15
Answer: 3 seconds
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Term1/15
A ball is thrown horizontally from a cliff at a speed of 15 ms and strikes the ground 45 meters from the base of the cliff How high was the cliff rounded to the nearest meter
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Definition1/15
Answer: 44 meters
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Term1/15
What does the amount of force times the time applied equal
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Definition1/15
impulse
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Term1/15
In what type of orbits do planets move around the sun
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Definition1/15
elliptical
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Term1/15
A pulley system is used to lift a 2000 newton engine up a distance of 3 meters The operator must apply a force of 250 newtons to the chain of the pulley system to lift the motor To lift the engine fi
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Definition1/15
250 newtons
A+ Answers
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Term1/15
A football is thrown horizontally off the top of an apartment house that is 78.4 meters high the ball is thrown at a speed of 15 ms how far will the ball travel before hitting the streets below
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Definition1/15
"60" or "sixty"
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Term1/15
A rifle is shot straight up and the bullet leaves the barrel at a speed of 245 m s How long will it take the bullet to hit the ground
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Definition1/15
50 sec.
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Term1/15
What type of measurement is the air pressure inside a tire
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Definition1/15
SCALAR
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Term1/15
A player kicks a soccer ball from ground level and sends it flying at an angle of 30 degrees at a speed of 26 ms
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Definition1/15
Yes your question is.......................
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Term1/15
What term is given to the net figure that results from vector
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Definition1/15
resultant
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Term1/15
Which two topics does the Seventeenth Amendment cover
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Definition1/15
Suffrae and Politics
~Jaciel~
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Cards in this guide (15)
A rock is dropped from a cliff and hits the ground 6.0 seconds later How high is the cliff
176.4 meters
A hammer is dropped off a roof of an apartment building that is 80 meters high How long will it take to hit the ground
The hammer will take square-root(2x80/9.8)= 4.04 seconds to hit
the ground.
The distance is related to the time by s=v0t + 1/2 gt^2 where
vo, the initial velocity is=0.
The answer is 4.04 or rounded is 4 seconds.
A baseball is hit straight up at an initial velocity of 150MS. what will be the baseballs speed when it hits the ground
20.40
A ball is thrown horizontally at 20 ms from the top of a cliff 50 meters high How long does it take the ball to reach the ground
Use the equation [ D = 1/2 g t2 ] .
D = the distance of free-fall = 50 m
g = acceleration of gravity = 9.8 m/sec2
t = time in free-fall
D = 1/2 g t2
2D / g = t2
t = sqrt( 2D / g ) = sqrt( 100 / 9.8 ) = 3.1944 seconds(rounded)
The horizontal velocity that the ball has when it's launched doesn't appear
in the calculation, because it makes absolutely no difference in the result.
Any effects of air resistance have been ignored in arriving at this solution.
A ball is thrown horizontally from a cliff at a speed of 15 ms and strikes the ground 45 meters from the base of the cliff How long was the ball in the air
Answer: 3 seconds
A ball is thrown horizontally from a cliff at a speed of 15 ms and strikes the ground 45 meters from the base of the cliff How high was the cliff rounded to the nearest meter
Answer: 44 meters
What does the amount of force times the time applied equal
impulse
In what type of orbits do planets move around the sun
elliptical
A pulley system is used to lift a 2000 newton engine up a distance of 3 meters The operator must apply a force of 250 newtons to the chain of the pulley system to lift the motor To lift the engine fi
250 newtons
A+ Answers
A football is thrown horizontally off the top of an apartment house that is 78.4 meters high the ball is thrown at a speed of 15 ms how far will the ball travel before hitting the streets below
"60" or "sixty"
A rifle is shot straight up and the bullet leaves the barrel at a speed of 245 m s How long will it take the bullet to hit the ground
50 sec.
What type of measurement is the air pressure inside a tire
SCALAR
A player kicks a soccer ball from ground level and sends it flying at an angle of 30 degrees at a speed of 26 ms
Yes your question is.......................
What term is given to the net figure that results from vector
resultant
Which two topics does the Seventeenth Amendment cover
A jogger runs at an average speed of 5 ms for 3 minutes then finishes with an average speed of 4 ms for 2 minutes What is his average speed in ms for the run
A bicycle is an example of what machine
Convert 60 miles per hour to ft per sec
Is physics the branch of science that involves the study of physical phenomena in order to establish patterns