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August 23, 2014

Search: A rubber ball is dropped and bounces vertically from a horizontal concrete floor. If the ball has a speed of 3.3 m/s just before striking the floor and

Number of results: 33,483

physics
a 200g tennis ball approaches a racket at 20m/s is in contact with the racket for 0.008s and the ball rebounds at 4m/s. find the average force that the racket exerted on the ball
April 16, 2012 by sugin

Physics
A player kicks a soccer ball from ground level and sends it flying at an angle of 30 degrees at a speed of 26 m/s. How far did the ball travel before it hit the ground? Round the answer to the nearest meter.
April 2, 2013 by Anonymous

physics- please respond !
A 0.130kg baseball pitched at 35.5 m/s is hit on a horizontal line drive straight back at the pitcher at 50.5 m/s . Part a: If the contact time between bat and ball is 4.2510^−3 , calculate the magnitude of the force (assumed to be constant) between the ball and bat. ...
June 1, 2012 by katie

physics- please respond
A 0.130kg baseball pitched at 35.5 m/s is hit on a horizontal line drive straight back at the pitcher at 50.5 m/s . Part a: If the contact time between bat and ball is 4.2510^−3 , calculate the magnitude of the force (assumed to be constant) between the ball and bat. ...
June 1, 2012 by katie

physics
A golfer hits a golf ball with a velocity of 36.0 meters/second at an angle of 28.0. If the hang time of the golf ball is 3.44 seconds, what is the range of the golf ball?
January 29, 2013 by nimitz

Physics
In an arcade game, a ball is launched from the corner of a smooth inclined plane. The inclined plane makes a 33.3 angle with the horizontal and has a width of w = 42.9 cm. The spring-loaded launcher makes an angle of 45.0 with the lower edge of the inclined plane. The goal ...
January 30, 2011 by Mark

physics
a kitten pushes a ball of yarn rolling toward it at 1.00 cm/s with its nose, displacing the ball of yarn 17.5 cm in the opposite direction in 2.00 s. What is the acceleration of the ball of yarn ? a) 8.75 cm/s2 b) 10.75 cm/s2 c) 9.75 cm/s2 d) need more information
March 7, 2012 by blue

Physics
An average force of 208 N acts for a time interval of 0.058 s on a golf ball. (a) What is the magnitude of the impulse acting on the golf ball? (b) What is the change in the golf ball's momentum?
July 7, 2014 by Anonymous

physic
a ball of mass 1oog falls from a height of 5m onto a floor and rebounds to a height of 3m . what energy is lost as a result of the impact on the floor ?
January 12, 2012 by antiah

physic
a ball of mass 1oog falls from a height of 5m onto a floor and rebounds to a height of 3m . what energy is lost as a result of the impact on the floor ?
January 12, 2012 by antiah

physic
a ball of mass 1oog falls from a height of 5m onto a floor and rebounds to a height of 3m . what energy is lost as a result of the impact on the floor ?
January 12, 2012 by antiah

physic
a ball of mass 1oog falls from a height of 5m onto a floor and rebounds to a height of 3m . what energy is lost as a result of the impact on the floor ?
January 12, 2012 by antiah

physic
a ball of mass 1oog falls from a height of 5m onto a floor and rebounds to a height of 3m . what energy is lost as a result of the impact on the floor ?
January 12, 2012 by antiah

physic
a ball of mass 1oog falls from a height of 5m onto a floor and rebounds to a height of 3m . what energy is lost as a result of the impact on the floor ?
January 12, 2012 by antiah

physics
s man travel on train and throw a ball straight up relative to the train with speed of 4.90m/s the train has a velocity of 20.0m/sdue east so what is the ball's total time of flight?
October 8, 2009 by danny

physics
s man travel on train and throw a ball straight up relative to the train with speed of 4.90m/s the train has a velocity of 20.0m/sdue east so what is the diplacement of the ball during its rise?
October 8, 2009 by danny

Physics
golf club with a mass of 250 g travels at 50 meters per second hits a 40 g golf ball and continues traveling at 35 m/s. What is the speed of the golf ball after impact?
May 10, 2011 by Spencer

Calculus
Four red balls and two white balls are placed in a jar. One ball is randomly removed and replaced with a ball of the other color. The jar is then shaken, and one ball is randomly selected. What is the probability that this ball is red? Express your answer as a common fraction.
October 1, 2007 by Matt

physics
A 0.45 kg soccer ball approaches a player horizontally with a velocity of magnitude equal to 35 m/s. The player heads the ball straight back out horizontally, and the magnitude of the balls velocity after the collision is 40 m/s. The contact time between their head and the ...
July 12, 2012 by Jessica

Physics
a 1kg ball is thrown into the air with an initial velocity of 30 m/sec. how much kinetic energy does the ball have? -how much potential energy does the ball have when it reaches the top of its ascent? -how high into the air did the ball travel?
November 22, 2009 by Kim

algebra
When a ball is thrown in the air, the height h of a ball in feet t seconds after the ball is thrown in the air, is given by the equation height = 25t16t Use the quadratic equation to determine how many seconds goes by before the ball hits the ground?
May 7, 2012 by Coach

algebra
When a ball is thrown in the air, the height h of a ball in feet t seconds after the ball is thrown in the air, is given by the equation height = 25t16t Use the quadratic equation to determine how many seconds goes by before the ball hits the ground?
May 7, 2012 by Coach

math HELP
When a ball is thrown in the air, the height h of a ball in feet t seconds after the ball is thrown in the air, is given by the equation height = 25t16t Use the quadratic equation to determine how many seconds goes by before the ball hits the ground?
May 8, 2012 by Coach

physics
A tennis ball is dropped from the top of a building. It falls for 2.5 seconds before it hits the ground. (a) What velocity is the tennis ball traveling right before it hits the ground? (b) How high is the building?
January 21, 2010 by Kristin

physics
In a football game a kicker attempts a field goal. The ball remains in contact with the kicker's foot for 0.050 s, during which time it experiences an acceleration of 360 m/s2. The ball is launched at an angle of 46 above the ground. Determine the horizontal and vertical ...
September 5, 2010 by demi

PHYSICS
In a football game a kicker attempts a field goal. The ball remains in contact with the kicker's foot for 0.050 s, during which time it experiences an acceleration of 340 m/s2. The ball is launched at an angle of 51 above the ground. Determine the horizontal and vertical ...
September 15, 2010 by veronica

Physics
In a football game a kicker attempts a field goal. The ball remains in contact with the kicker's foot for 0.050 s, during which time it experiences an acceleration of 390 m/s2. The ball is launched at an angle of 46 above the ground. Determine the horizontal and vertical ...
January 30, 2013 by Dee

Physics
In a football game a kicker attempts a field goal. The ball remains in contact with the kicker's foot for 0.0475 s, during which time it experiences an acceleration of 417 m/s2. The ball is launched at an angle of 59.7 above the ground. Determine the (a) horizontal and (b) ...
June 18, 2013 by Justin

physics
In a football game a kicker attempts a field goal. The ball remains in contact with the kicker's foot for 0.0771 s, during which time it experiences an acceleration of 162 m/s2. The ball is launched at an angle of 53.3 above the ground. Determine the (a) horizontal and (b) ...
June 23, 2013 by louis aaaa

College Physics
a 5.63kg ball hangs from a vertical pole by a 2.4 long string. Assume the ball is moving at 4.33m/s in a horizontal circle with the string remaining taut. Calculate the angle that the string makes with the pole.
October 1, 2012 by Nicole

physics
A kitten pushes a ball of yarn rolling toward it at 1.00 cm/s with its nose, displacing the ball of yarn 17.5 cm in the opposite direction in 2.00 s. What is the acceleration of the ball of yarn?
September 23, 2013 by erfewr

Physics
Horizontal velocity: 138ft/s Vertical velocity: 109ft/3 A ball is thrown at 95 mi/h. The distance from the mound to the plate is 60.5 ft. Assuming the ball is pitched parallel to the ground, how far does it fall due to gravity by the time it reaches the plate? Show calculations.
October 25, 2010 by Jill

physics
player kicks football from ground level with velocity of32 m/s at an angle of 40 degrees above horizontal. What is hang time of football? How far does the ball travel horizontally before hitting the ground? What is the maximum height that the ball reaches?
November 29, 2010 by chelsie

physics
A ball of mass 540 g hangs from a spring whose stiffness is 155 newtons per meter. A string is attached to the ball and you are pulling the string to the right, so that the ball hangs motionless, as shown in the figure. In this situation the spring is stretched, and its length...
February 29, 2012 by Alina

Physics
Bob jumps from a 2.0 m high table and wants to jump over a 0.85 m radius ball. How fast must Bob move horizontally to not land on the ball? If we use kinematics equations for projectile, the answer is 2.66 m/s; however, with this velocity the person will land on the ball. I ...
September 19, 2012 by Elaine

physics
starting from rest, a ball rolss, down an incline ata constant acceleration of 2meters per second what is the velocity of the ball after 8.5 seconds? how far does the ball roll in 10 seconds? any one can help pleasse im stuck
January 13, 2008 by ashley

physics
A small 2g plastic ball is suspended by a 20 cm long string in a uniform electric field. If the ball is in equilibrium when the string makes a 15 degree angle with the vertical, what is the net charge on the ball? E=10^3 N/c(answer: 5.25x10^-6) Work: I know E=q/r^2 10^3=q/(.2m...
February 11, 2008 by Anonymous

college physics
A 1100 kg wrecking ball hangs from a 14m-long cable. The ball is pulled back until the cable makes an angle of 17.0 degrees with the vertical.By how much has the gravitational potential energy of the ball changed?
June 22, 2011 by Bethany

W
A small plastic ball of mass m = 3.00 g is suspended by a string of length L = 24.5 cm in a uniform electric field, as shown in the figure below. If the ball is in equilibrium when the string makes a θ = 16.0 angle with the vertical as indicated, what is the net charge ...
July 1, 2012 by Kaitie

physics
When rolling along the felt on the billiard table, the ball experiences a frictional force of 0.2 N. a. What is the deceleration of the ball on the felt? b. How far will the ball roll before stopping? c. Explain this in terms of Newtons first law of motion.
March 14, 2014 by Swastika

physics
I did a projectile motion lab, predicting where a ball would land before actually dropping it. I have to answer this question: you accounted for variations in the velocity measurement in your range prediction. Are there other measurements you used which would affect the range ...
February 1, 2009 by Kimberly

physics
I need help with an equation for: Find the force of attraction between a bowling ball of mass 7.26 kg and the earth if the bowling ball was located at sea level. How does this compare to the weight of the bowling ball as calculated by Fg = mg? Thank you
December 12, 2010 by anonymous

Physics
A golfer drives a golf ball with a velocity of 100 ft/sec and an angle of 45 degrees. A. find the time of travel for the ball. B. Find the balls range. C. Find the maximum height of the ball
November 5, 2012 by Alfred

Physics
A 500g ball is dropped into a well that is 10m deep. A)What is the ball's potential energy before it is dropped? Take the bottom of the well to be at zero height. I solved by using PE=mgh and came up with 49J. B) What are the kinetic energy and potential energy when it has ...
December 4, 2011 by Mack

physics
A 500g ball is dropped into a well that is 10m deep. A)What is the ball's potential energy before it is dropped? Take the bottom of the well to be at zero height. I solved by using PE=mgh and came up with 49J. B) What are the kinetic energy and potential energy when it has ...
December 4, 2011 by Mack

Physics
A ball is thrown straight upward (along the y-axis) with an initial velocity of 16 m/s from the top of a building located 20 m above ground. Find the maximum height of the ball. In other words, find the ball's maximum distance from the ground. Be aware that once you find the ...
June 20, 2011 by Promise

physical science
A soccer player applies a force of 51.5 N to a soccer ball while kicking it. If the ball has a mass of 0.46 kg, what is the acceleration of the soccer ball?
March 29, 2012 by Tityana

College Physics
A golf ball (mass 0.045 kg) is hit with a club from a tee. The plot shows the force on the ball as a function of time in milliseconds. One millisecond is 10-3 seconds. What is its speed right after the hit?
October 16, 2010 by Kaleigh

Physics(Please respond)
1) A 1320 kg demolition ball swings at the end of a 34.3 m cable on the arc of a vertical circle. At the lowest point of the swing, the ball is moving at a speed of 3.32 m/s. Determine the tension in the cable. F=ma (34.3)(3.32) = 113.87 Ia this correct?
May 29, 2012 by Hannah

Physics
A 3.1 kg ball is tied to a string and swung in a horizontal circle at a speed of 7.2 m/s. the radius of the circle is 2.2 m. What angle does the string make with the horizontal? What is the tension in the string?
June 21, 2012 by Stephanie

College Physics
A ball of mass 620 g hangs from a spring whose stiffness is 195 newtons per meter. A string is attached to the ball and you are pulling the string to the right, so that the ball hangs motionless, as shown in the figure. In this situation the spring is stretched, and its length...
October 5, 2012 by Anabel

Physics
A physics book slides off a horizontal tabletop with a speed of 1.10m/s . It strikes the floor in 0.350s . Ignore air resistance. The height of the tabletop above th floor is .600m.The horizontal distance from the edge of the table to the point where the book strikes the floor...
October 15, 2010 by Kara

Physics
A physics book slides off a horizontal tabletop with a speed of 1.10m/s . It strikes the floor in 0.350s . Ignore air resistance. The height of the tabletop above th floor is .600m.The horizontal distance from the edge of the table to the point where the book strikes the floor...
October 15, 2010 by Sam

physics
A 45g golf ball is hit with a golf club. the head of the club has a mass of 0.19kg and travels 63m/s before the collision. the ball has a speed of 72m/s as it leaves the face of the club. what is the speed of the club after the collision?
April 13, 2013 by y

Physics
A bowling ball of mass M and radius R is thrown along a level surface so that initially ( t= 0) it slides with a linear speed but does not rotate, see the figure. As it slides, it begins to spin, and eventually rolls without slipping. How far has the ball moved down the lane ...
December 4, 2011 by Helen

Physics
A bowling ball of mass M and radius R is thrown along a level surface so that initially ( t= 0) it slides with a linear speed but does not rotate, see the figure. As it slides, it begins to spin, and eventually rolls without slipping. How far has the ball moved down the lane ...
December 4, 2011 by Helen

Art
Thank you very much for your suggestions. I urgently need your help to check these statements on tennis. 1) The most important tennis shoots are forehand and backhand. These shoots are very important because when the ball bounces you must hit the ball with these two shoots (...
May 3, 2012 by Frank

Physics
In the figure, two balls are located in deep space. The black ball has mass 56kg and the red ball has mass 17kg. The distance between the two balls is r=24cm. (a) Find the magnitude of the acceleration of the red ball. m/s2 (b) If r is 5 times larger, with what factor will the...
March 8, 2012 by Sarah

physics
To find the height of an overhead power line, you throw a ball straight upward. The ball passes the line on the way up after 0.65 s, and passes it again on the way down 1.9 s after it was tossed. (a) What is the height of the power line? (m) (b) What is the initial speed of ...
September 16, 2010 by vonne

solid mensuration
103. A billiard ball, aimed at a point A on the edge of the cushion of a horizontal billiard table, rolls along a line making 18 degrees with the cushion. If the cushion over hangs so that its edge is 4 cm. above the table and the diameter of the ball is 5 cm. find the ...
May 12, 2012 by apolonio

Physics Mehanics
A meter stick is held vertically with one end on the floor and is then allowed to fall. Find the speed of the other end when it hits the floor, assuming that the end on the floor does not slip. (Hint: Consider the stick to be a thin rod and use the conservation of energy ...
February 24, 2011 by D

conceptual science
In the absence of air resistance, a ballplayer tosses a ball straight up. (a) By how much does the speed of the ball decrease each second while it is ascending? (b) By how much does its speed increase each second while it is descending? (c) How does the time of ascent compare ...
June 23, 2013 by Brenda

algebra
A baseball player hits a ball toward the outfield. The height h of the ball in feet is modeled by h(t) = -16t2 + 22t + 3, where t is the time in seconds. If no one catches the ball, how long will it stay in the air? (Round to the nearest tenth of a second and enter only the ...
February 13, 2014 by Ashlee

Physics
Regading my question yesterday about the ball being caught by the man on the scales (Sun. 3:47), I'm now wondering if, to get the final weight on the scales I need to add the actual ball's mass of .50 kg AS WELL AS the force of the ball on the man to his original weight in ...
March 23, 2009 by Brigid

physics
A ball is thrown upward from a platform 5.1 meters high with a speed of 13 m/s at an angle 45 degrees from the horizontal. what is the magnitude of its velocity when it hits the ground?
September 11, 2009 by Andy

Physics
When tossed upward and hit horizontally by a batter, a 0.23 kg softball receives an impulse of 2.0 Ns. With what horizontal speed does the ball move away from the bat?
November 24, 2010 by Stephanie

physics
A ball of mass moves in a horizontal circular path of radius a with speed v as shown in the illustration below. Find the tension in the cord.
November 25, 2011 by pakilina

physics
two tall buildings are 80 m apart. A ball is thrown at 100 m/sec from one building toward the other but at an angle of 37 degrees below the horizontal. Find the vertical distance through which the ball falls before it hits the other building.
December 19, 2010 by Elise

Health
The coach noticed that Caleb really started to kick the soccer ball with great amount of power after the kicking drills. Caleb adjusted the power of his soccer kick by increasing the speed of his kicking leg prior to and upon contact with the ball starting his kick from a two ...
January 30, 2014 by Ben

physics
you throw 2 balls at a bunch of pins. is it better to throw a putty or rubber ball?
September 16, 2011 by cody

Physics
Suppose you throw a 0.054-kg ball with a speed of 11.5 m/s and at an angle of 31.8 above the horizontal from a building 13.1 m high. (a) What will be its kinetic energy when it hits the ground? (b) What will be its speed when it hits the ground?
June 1, 2012 by James

Physics
Suppose you throw a 0.058-kg ball with a speed of 11.0 m/s and at an angle of 31.5 above the horizontal from a building 12.3 m high. (a) What will be its kinetic energy when it hits the ground? (b) What will be its speed when it hits the ground?
September 26, 2012 by Ray

algebra
A student threw a ball directly upward from the balcony of a building. The height of the ball as measured from the ground "t" seconds after it was thrown, is given by the expression h= -16t(2nd power) + 64t + 768 When does the ball reach the ground?
September 14, 2009 by Pat

physics
a person throws a ball upward into the air with an initial velocity of 15 m/s calculate a)how high it goes? b)how long the ball is in the air before it comes back ? c)how much time it takes for the ball to reach the maximum height?
November 19, 2011 by nour

physics
When serving a tennis ball, the player hits it when its velocity is zero (at the highest point of a vertical toss). The racket exerts a force of 560 N on the ball for 5.00 ms, giving it a final velocity of 45.0 m/s. Using these data, find the mass of the ball.
December 19, 2011 by Amelia

physics
When serving a tennis ball, the player hits it when its velocity is zero (at the highest point of a vertical toss). The racket exerts a force of 560 N on the ball for 5.00 ms, giving it a final velocity of 45.0 m/s. Using these data, find the mass of the ball.
December 19, 2011 by Amelia

Physics
A soccer ball kicked on a level field has an initial vertical velocity component of 15 meters per second. Assuming the ball lands at the same height from which it was kicked, what is the total time the ball is in the air? [Neglect friction.]
November 14, 2012 by Shannon

physics
A small plastic ball of mass m = 1.50 g is suspended by a string of length L = 15.5 cm in a uniform electric field, as shown in the figure below. If the ball is in equilibrium when the string makes a θ = 19.0 angle with the vertical as indicated, what is the net charge ...
March 15, 2013 by bob

Physics
A steel ball hangs in a 147cm thread which is dragged right and then let go. Velocityh of the ball is 2,44m/s when it goes through the middle position. I dont have any mass given up. How many degrees to the side had the ball been dragged?
March 31, 2014 by Paul

physics
The velocity of a ball changes from 8, −5, 0 m/s to 7.88, −5.28, 0 m/s in 0.04 s, due to the gravitational attraction of the Earth and to air resistance. The mass of the ball is 140 grams. I calculated the acceleration and got <-3,-7,0> what is the ...
June 28, 2014 by sam

Physics
In a circus an elderly performer thrills the crowd by catching a canon ball shot at him. The cannon ball has a mass of 28.0 kg and its horizontal component of velocity is 6.50 m/s when the 65.0 kg performer catches it. If the performer is on nearly frictionless roller skates, ...
July 14, 2013 by Amy

physics
At low speeds (especially in liquids rather than gases), the drag force is proportional to the speed rather than it's square, i.e., F⃗ = −C1rv⃗ , where C1 is a constant. At time t = 0, a small ball of mass m is projected into a liquid so that it initially has...
October 14, 2013 by Anonymous

physics
At low speeds (especially in liquids rather than gases), the drag force is proportional to the speed rather than it's square, i.e., F⃗ = −C1rv⃗ , where C1 is a constant. At time t = 0, a small ball of mass m is projected into a liquid so that it initially has...
October 14, 2013 by Anonymous

physics
At low speeds (especially in liquids rather than gases), the drag force is proportional to the speed rather than it's square, i.e., F⃗ = −C1rv⃗ , where C1 is a constant. At time t = 0, a small ball of mass m is projected into a liquid so that it initially has...
October 14, 2013 by Anonymous

physics
Ball 1, with a mass of 180 g and traveling at 18 m/s, collides head on with ball 2, which has a mass of 370 g and is initially at rest (a) What are the final velocities of each ball if the collision is perfectly elastic? (b) What are the final velocities of each ball if the ...
October 26, 2010 by Lucy

math
a ball has a volume of 45. the radius of the larger ball is 3 times the small ball what is the volume?
February 6, 2012 by tl

Dr. Bob can you look at this
If I take a glob of mud and throw it against a wall with the speed of V and stops in time T and than I take a ball and throw it and it hits the wall with speed V and leaves the wall a time T later at a speed of 0.5V and they both have same value and mass, which one involves a ...
October 3, 2010 by Allen

MATH
a golf ball dropped onto a hard surface rebounds exactly 1/3 of the height from which it falls. how far will it rebound after hitting the surface for the third time if it initially dropped from a height of 18 feet
February 3, 2011 by bob

physices
A physics book slides off a horizontal table top with a speed of 1.30 m/s . It strikes the floor after a time of 0.380s . Ignore air resistance. Find the height of the table top above the floor. Find the horizontal distance from the edge of the table to the point where the ...
April 8, 2011 by wala'a sami

Algebra 1
A ball is thrown upward with an initial velocity of 35 meters per second from a cliff that is 80 meters high. The height of the ball is given by the quadratic equation h = -49t^2 + 35t + 140 where h is in meters and t is the time in seconds since the ball was thrown. Find the ...
March 7, 2013 by Sherry

AP Physics
22. a)You are a pirate working for Dread Pirate Roberts. You are in charge of a cannon that exerts a force 20000 N on a cannon ball while the ball is in the barrel of the cannon. The length of the cannon barrel is 2.19 m and the cannon is aimed at a 32 angle from the ground. ...
February 26, 2011 by jeff

physics
a soccer ball is kicked with an initial velocity of 5.0 m/s^2 in a direction of 30 degrees above the horizontal a. what are the initial components of the velocity? vix= viy= b. what are the components of the veloicty just before the ball hits the ground? vx= vy=
October 17, 2010 by elana

loyla
A bag contains one black ball and one white ball. Another black ball is put into the same bag and bag is shuffled. The first ball pulled out the bag is a black one. What are the chances of the next ball to be pulled out to be black?
August 15, 2014 by rajshekar

Physics
A 0.53-kg billiard ball initially at rest is given a speed of 12 m/s during a time interval of 4.0 ms. What average force acted on the ball during this time?
March 1, 2010 by Chels

Science
a ball weighing 1.78N is shot through a launcher, achieving a speed from rest of 41 m/s in 0.28s what is the acceleration of the ball as it moves through the launcher?
November 5, 2013 by Anonymous

physics
A solid ball of radius b and mass m is released from the top of an incline of the incline is at the height h above the ground. If the ball rolls without slipping, what willl be its linear speed when it reaches the botton of the incline?
November 25, 2011 by pakilina

physics
A soccer ball of diameter 32 cm rolls without slipping at a linear speed of 2.4 m/s. Through how many revolutions has the soccer ball turned as it moves a linear distance of 16 m?
October 27, 2010 by linda

physics
A 0.105 kg baseball is thrown upward with an initial speed of 12.0 m/s. (a) What is the force on the ball when it reaches half of its maximum height? (b) What is the force on the ball when it reaches its peak?
November 6, 2010 by Tim

physics
A soccer ball of diameter 30 cm rolls without slipping at a linear speed of 3.1 m/s. Through how many revolutions has the soccer ball turned as it moves a linear distance of 15 m?
February 23, 2011 by Tin

physics
A soccer ball of diameter 29 cm rolls without slipping at a linear speed of 3.6 m/s. Through how many revolutions has the soccer ball turned as it moves a linear distance of 18 m?
October 5, 2011 by kat

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