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July 30, 2014

Search: A cannonball is catapulted toward a castle. The cannonball's velocity when it leaves the catapult is 45 m/s at an angle of 50¡Æ with respect to the horizontal and the cannonball is 7.0 m above the ground at this time

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physics3
A cannonball is catapulted toward a castle. The cannonball's velocity when it leaves the catapult is 39 m/s at an angle of 40 with respect to the horizontal and the cannonball is 7.0 m above the ground at this time. (a) What is the maximum height above the ground reached by ...
February 16, 2012 by Anonymous

physics
You are a Middle Ages cannonball scientist attacking a castle a distance D away. Your job is to get a cannonball of mass m over the walls, which are a height H above the top of the cannonball launcher. At the instant when the cannonball leaves the launcher it will be traveling...
January 26, 2014 by Henry

Physics
A cannonball is dropped overboard from a boat. The cannonball sinks toward the bottom of the sea. The mass of the seawater displaced by the cannonball is exactly 2/3 the mass of the cannonball. Find the velocity of the cannonball after 10 seconds after being dropped.
May 7, 2014 by Wong

Physics 111
King Arthur's knights fire a cannon from the top of the castle wall. The cannonball is fired at a speed of 48 m/s and at an angle of 29. A cannonball that was accidentally dropped hits the moat below in 1.7 s. (a) How far from the castle wall does the cannonball hit the ground?
September 19, 2010 by Anonymous

physics
King Arthur's knights fire a cannon from the top of the castle wall. The cannonball is fired at a speed of 54 m/s and at an angle of 34. A cannonball that was accidentally dropped hits the moat below in 1.1 s.(a) (a)How far from the castle wall does the cannonball hit the ...
June 19, 2011 by kate

physics
King Arthur's knights fire a cannon from the top of the castle wall. The cannonball is fired at a speed of 42 m/s and at an angle of 33. A cannonball that was accidentally dropped hits the moat below in 1.6 s. (a) How far from the castle wall does the cannonball hit the ...
March 5, 2012 by Haley

physics
A cannonball is shot (from ground level) with an initial horizontal velocity of 38.0 m/s and an initial vertical velocity of 26.0 m/s. 1) What is the initial speed of the cannonball? 2) What is the initial angle θ of the cannonball with respect to the ground? 3) What is ...
August 29, 2012 by Dante

pyhsics
A cannonball is shot (from ground level) with an initial horizontal velocity of 36.0 m/s and an initial vertical velocity of 21.0 m/s. 1) What is the initial speed of the cannonball? 2) What is the initial angle θ of the cannonball with respect to the ground? 3) What is ...
September 8, 2012 by ali

Physics
A cannonball is shot (from ground level) with an initial horizontal velocity of 38.0 m/s and an initial vertical velocity of 26.0 m/s. The initial speed of the cannonball 46.04 m/s The initial angle θ of the cannonball with respect to the ground 34.38 What is the maximum...
September 11, 2012 by Kayla

Physics
A cannonball is shot (from ground level) with an initial horizontal velocity of 38.0 m/s and an initial vertical velocity of 26.0 m/s. The initial speed of the cannonball 46.04 m/s The initial angle θ of the cannonball with respect to the ground 34.38 What is the maximum...
September 11, 2012 by Kayla

Physics
A cannonball is shot (from ground level) with an initial horizontal velocity of 38.0 m/s and an initial vertical velocity of 26.0 m/s. The initial speed of the cannonball 46.04 m/s The initial angle θ of the cannonball with respect to the ground 34.38 What is the maximum...
September 11, 2012 by Kayla

Physics
A cannonball is shot (from ground level) with an initial horizontal velocity of 38.0 m/s and an initial vertical velocity of 26.0 m/s. The initial speed of the cannonball 46.04 m/s The initial angle θ of the cannonball with respect to the ground 34.38 What is the maximum...
September 11, 2012 by Kayla

physics
A cannonball is shot from a cannon on a cliff at a height of 18.9 m at a ship on the ocean. The cannonball is shot with an initial velocity of 15.1 m/s at an angle of 24.7 degrees above the horizontal. #1- What is the total maximum height of the cannonball (the height with ...
November 24, 2009 by veronica

Physics
A cannon shoots a cannonball with an initial speed of 25 m/s at an angle 13. 1. What is the x component of the cannonballs initial velocity Vox? 2. What is the y component of the cannonballs initial velocity Voy? 3. What will be Vy, the y component of the cannonballs final ...
February 17, 2014 by Michelle

Physics
A cannon shoots a cannonball with an initial speed of 25 m/s at an angle 13. 1. What is the x component of the cannonballs initial velocity Vox? 2. What is the y component of the cannonballs initial velocity Voy? 3. What will be Vy, the y component of the cannonballs final ...
February 19, 2014 by Michelle

Physics
The cannonball is fired at a speed of 45 and an angle of 35 . A cannonball that was accidentally dropped from the top of the castle wall hit the moat below in 1.8 .
April 20, 2013 by jeff

Physics
A cannon fires a free projectile at an angle 85 from the ground. The cannonball has a speed of 150 m/s and it is launched from a hill 20 m above the plain where it will land 1. What is the x component of the cannonballs initial velocity 2. What is the y component of the ...
February 17, 2014 by Michelle

Physics
A cannon fires a free projectile at an angle 85 from the ground. The cannonball has a speed of 150 m/s and it is launched from a hill 20 m above the plain where it will land 1. What is the x component of the cannonballs initial velocity 2. What is the y component of the ...
February 19, 2014 by Michelle

MATH
The height h (in meters) of a cannonball t seconds after it is fired into the air is given by h=-4t^2+16t+9. a) What is the initial height of the cannonball? What feature does this correspond to on the graph? b) Find the height of the cannonball after 1 second. c) What is the ...
March 8, 2014 by Josh

Physics
A cannon launches a ball with the initial speed of 210 m/s at a 70 degree angle. 1. How high will the cannonball go? 2. If the cannonball has a mass of 25kg how much work does it take to launch the cannonball to that height?
April 11, 2014 by Michelle

physics
a pirate ship fires a 25kg cannonball with a velocity of +100m/s at a very heavy fur trader ship. the ship is at rest. the cannonball bounces off the side of the ship, making a hole. after the collision the cannonball has a velocity of -0.5m/s. assume the water did not absorb ...
February 28, 2011 by Allison

physics
A 20 kg cannonball is fired from a 2.4 x 103 kg. If the cannon recoils with a velocity of 3.5 m/s backwards, what is the velocity of the cannonball?
November 23, 2011 by Ula

Physics
A cannonball is fired with a velocity of 200 m/s at an angle of 25 degrees above the ground. After the total flight of 45.6 seconds, the cannonball returns to the ground. Calculate: the initial horizontal and vertical components of the velocity, the maximum height of the ...
October 23, 2012 by Anne

Physics
In a fit of pique, the Canadians fire a cannonball due south from vancouver (lat 49.2 degrees N) at a randomly picked city (39.4 degrees N). Assuming the cannonball takes 48 minutes to get there, by how far and in what direction will the cannonball miss?
March 5, 2010 by Krysten

Physics
In a fit of pique, the Canadians fire a cannonball due south from vancouver (lat 49.2 degrees N) at a randomly picked city (39.4 degrees N). Assuming the cannonball takes 48 minutes to get there, by how far and in what direction will the cannonball miss?
March 16, 2010 by Krysten

Physics
a cannon with a barrel velocity of 140 m/s launches a cannonball horizontally from a tower. neglecting air resistance how far vertically will the cannonball have fallen after 4 seconds?
September 26, 2013 by Anonymous

Physics
a cannon with a barrel velocity of 140 m/s launches a cannonball horizontally from a tower. neglecting air resistance how far vertically will the cannonball have fallen after 4 seconds?
September 26, 2013 by Anonymous

math
Mighty Mouse (who flies at a constant speed of 600mph) was standing by a cannon that was pointed straight up. A cannonball was shot vertically into the air with an initial velocity of 300 mph. Exactly one second after the cannon was fired, Mighty Mouse flew up to touch the ...
April 24, 2013 by bern

Math
Mighty Mouse (who flies at a constant speed of 1400 ft/sec) was standing next to a cannon that was pointed straight up. A cannonball was shot vertically into the air with an initial velocity of 880 ft/sec. Exactly one second after the cannon was fired, Might Mouse flew up to ...
December 10, 2012 by Jeremie

Physics Honors
A cannon fires a cannonball 500 m downrange when sest at a 45 angle. At what velocity does the cannonball leave the cannon?
December 2, 2011 by Jacqueline

physics
A cannonball is shot (from ground level) with an initial horizontal velocity of 33.0 m/s and an initial vertical velocity of 25.0 m/s. What is the initial speed of the cannonball?
September 10, 2012 by Max

physics
When a cannon fires a cannonball, the cannon will recoil backward because the a) energy of the cannonball and the cannon is conserved b) momentum of the cannonball and cannon is conserved c)energy of the cannon is greater than the energy of the cannonball d) momentum of the ...
October 24, 2007 by Tammy

physics (projectile motion)
A cow on a trebuchet is catapulted toward a castle wall. The cow is released with an inital velocity of 50 m/s at a 60 degree angle above the horizontal. At its release the cow is 8 m above the ground. The castle wall is 100 m from the trebuchet and the ground level of the ...
October 13, 2010 by matt

physics (projectile motion)
A cow on a trebuchet is catapulted toward a castle wall. The cow is released with an inital velocity of 50 m/s at a 60 degree angle above the horizontal. At its release the cow is 8 m above the ground. The castle wall is 100 m from the trebuchet and the ground level of the ...
October 13, 2010 by matt

physics
there is no air resistance. using a cannonball launcher, how can i find how far the cannonball will go (horizontally) if launched at 30 degrees? heres what i know: -the vertical displacement is -.245m -the vertical acceleration is -9.81m/s^2 -at 0 degrees, the initial velocity...
September 8, 2009 by jawn

physics
When a cannon with a longer barrel is fired, the force of expanding gases acts on the cannonball for a longer distance. What effect does this have on the velocity of the emerging cannonball? (Do you see why long-range cannons have such long barrels?)
April 27, 2013 by Chris

Physics
When a cannon with a longer barrel is fired, the force of expanding gases acts on the cannonball for a longer distance. What effect does this have on the velocity of the emerging cannonball? (Do you see why long-range cannons have such long barrels?)
September 22, 2013 by Miss Angie

Physics
A cannonball is hot straight up from the edge of a cliff with an initial velocity of 30m/s. A second cannonball is shot straight downward from the edge of the same cliff with an initial velocity of -30m/s. How do the speeds of the two cannonballs compare when they reach the ...
May 8, 2014 by Sandy

Introduction to Physical Science
When a cannon with a longer barrel is fired, the force of expanding gases acts on the cannonball for a longer distance. What effect does this have on the velocity of the emerging cannonball? (Do you see why long-range cannons have such long barrels?)
August 4, 2013 by Jason

11th grade-physics
a cannon with a mass of 1,500kg fired a 7kg cannonball along its 3m long barrel in 0.015 seconds a)calculate the acceleration of the cannonball b)the force acting on the cannonball c) the reaction force exerted on the cannon d)the acceleration of the cannon e) the distance the...
March 28, 2010 by Bill Williams

Phsyics
A cannonball is fired into the air with a speed of 42 m/s from a height of 28 m, with what speed does the cannonball hit the ground?
April 16, 2012 by Kelly

Physics
When a cannon with a longer barrel is fired, the force of expanding gases acts on the cannonball for a longer distance. What effect does this have on the velocity of the emerging cannonball? (Do you see why long-range cannons have such long barrels?) Please help; need a ...
April 25, 2013 by Chris

Physics
You are general in the Napoleonic wars. You are on top of a plain 12m talk and you have a cannon tht can shoot a cannonball out at 350 m/s. 800 m away is a thick forest that you cannot see into but one of your scouts in a hot air balloon has just signaled to you that an enemy ...
February 19, 2014 by Michelle

Physics
You are general in the Napoleonic wars. You are on top of a plain 12m talk and you have a cannon tht can shoot a cannonball out at 350 m/s. 800 m away is a thick forest that you cannot see into but one of your scouts in a hot air balloon has just signaled to you that an enemy ...
February 22, 2014 by Michelle

Science
If a ship is sailing with a constant speed of 30 m/s to the east and a cannonball is launched straight up into the air from the deck of the ship, why does the cannonball land back in the cannon and not in the ocean behind?
February 10, 2010 by Lanell

Physics
I have a sheet full of equations, I just don't know which one to use or what type of problem this is. A cannon is on a hill. The hill is 20 m high. The cannon is at an angle of 26 degress. If a cannonball is shot into the valley below. a.) Find the x and y components of ...
February 8, 2010 by Jill

physics
Two identical cannons fire cannonballs horizontally with the same initial velocity. One cannon is located on a platform partway up a tower, and the other is on top, four times higher than the first cannon. How much farther from the tower does the cannonball from the higher ...
June 15, 2012 by daniel

Physics
A revolutionary cannon, with a mass of 2000kg, fires a 20kg ball horizontally. The cannonball has a speed of 140m/s after it has left the barrel. The cannon carriage is on a flat platform and is free to roll horizontally. What is the speed of the cannon immediately after it ...
September 18, 2006 by puff puff

math
The path of a cannonball is a parabola modeled by the equation y= 55 + x - 0.002x^2, where x and y are both measured in feet. In this model, the cannonball starts at the point (0,55) and travels to the right. The ground is represented by the x-axis. Determine the horizontal ...
October 30, 2013 by Lily

Physics
During a circus performance, a 75-kg human cannonball is shot out of an 19-m-long cannon. If the human cannonball spends 0.94 s in the cannon, determine the average net force exerted on him in the barrel of the cannon
September 29, 2010 by Xavier

Physics
During a circus performance, a 75-kg human cannonball is shot out of an 19-m-long cannon. If the human cannonball spends 0.94 s in the cannon, determine the average net force exerted on him in the barrel of the cannon
October 3, 2010 by Jibri

Physics
During a circus performance, a 64-kg human cannonball is shot out of an 17-m-long cannon. If the human cannonball spends 0.99 s in the cannon, determine the average net force exerted on him in the barrel of the cannon.
October 3, 2012 by Anonymous

Physics
During a circus performance, a 64-kg human cannonball is shot out of an 17-m-long cannon. If the human cannonball spends 0.99 s in the cannon, determine the average net force exerted on him in the barrel of the cannon.
October 3, 2012 by Donald

Physics
During a circus performance, a 77-kg human cannonball is shot out of an 20-m-long cannon. If the human cannonball spends 0.91 s in the cannon, determine the average net force exerted on him in the barrel of the cannon.
February 22, 2013 by Ronnica

Physics!!
During a circus performance, a 73.1-kg human cannonball is shot out of a 19.5-m-long cannon. If the human cannonball spends 0.921 s in the cannon, determine the average net force exerted on him in the barrel of the cannon.
February 2, 2011 by Tiffany

physics
During a circus performance, a 67.2-kg human cannonball is shot out of a 17.1-m-long cannon. If the human cannonball spends 0.772 s in the cannon, determine the average net force exerted on him in the barrel of the cannon.
February 23, 2011 by heather

physics
During a circus performance, a 74.8-kg human cannonball is shot out of a 18.0-m-long cannon. If the human cannonball spends 0.844 s in the cannon, determine the average net force exerted on him in the barrel of the cannon.
February 1, 2012 by Erin

physics
A cannonball is fired horizontally from a 240 {m}-high cliff toward a vertical building 720 {m} away with an initial velocity of 120 {m/s}. When the ball will hit the building? in a. 7.00 {s} b. 6.00 {s} c. less than 6.00 {s} d. more than 7.00 {s}
January 25, 2011 by andrea

physics
A cannonball of mass 3.67 kg is shot from a cannon at an angle of 39.51 relative to the horizontal and with an initial speed of 56.41 m/s. As the cannonball reaches the highest point of its trajectory, what is the gain in its potential energy relative to the point from which ...
February 20, 2011 by lizzy

physics
A cannonball of mass 6.09 kg is shot from a cannon at an angle of 47.18 relative to the horizontal and with an initial speed of 48.90 m/s. As the cannonball reaches the highest point of its trajectory, what is the gain in its potential energy relative to the point from which ...
June 9, 2012 by lanre

College Physics
A cannonball of mass 3.67 kg is shot from a cannon at an angle of 39.51 relative to the horizontal and with an initial speed of 56.41 m/s. As the cannonball reaches the highest point of its trajectory, what is the gain in its potential energy relative to the point from which ...
February 20, 2011 by Emma

Physics
a) A cannonball is fired horizontally from the top of a cliff. The cannon is at height H = 100 m above ground level, and the ball is fired with initial horizontal speed v_0. Assume acceleration due to gravity to be g = 9.80 m/s^2. Assume that the cannon is fired at time t = 0 ...
September 26, 2008 by Sam

Physics
Multiple choice please help. How much kinetic energy does a 1 kg ball have if it has a velocity of 10 m/s? a. 100 J. b. 50 J. c. 10 J. d. 5 J. The airbag in a car works in a collision by . . . a. increasing the time of the impact to the person. b. reducing the impulse to the ...
October 20, 2011 by Lisa

Physics
Why does a cannonball shot from a cannon with a long barrel travel faster than the same cannonball shot from a cannon with a shorter barrel?
November 15, 2011 by Shari

Oceanography
On a sunny day in an estuary, the surface irradiance is 1.6*10^17 photons cm^-2 s^-1. What is k if the irradiance is 7.3*10^13 photons cm^-1 s^-1 at 16 m depth? At a spot in the ocean, the surface irradiance is 7.8*10^16 photons and k=.14 m^-1. At what depth does the euphotic ...
March 5, 2010 by Krysten

Physics
Multiple choice. The airbag in a car works in a collision by . . . a. increasing the time of the impact to the person. b. reducing the impulse to the person. c. reducing the momentum of the person. d. increasing the force on the person. A cannonball shot from a cannon with a ...
October 19, 2011 by Lisa

physics
a cannon ball is shot from a 100 m high cliff with an inital velocity of 24m/s and at an angle of 32 degrees. what is the overall final velocity of the cannonball?
September 21, 2010 by Connor

Physical Science
A stationary but moveable 450-kg cannon is fired and the 12-kg cannonball moves off to the right with a velocity of 20.0 m/s. What is the connon's velocity (both magnitude and direction) due to the kickback from the firing?
February 26, 2011 by Tina

Physics
A cannonball is fired horizontally from a 240 -high cliff toward a vertical building 540 away with an initial velocity of 90.0 . When the ball will hit the building? A) 7.00 s B) 6.00 s C) less than 6.00 s D) more than 7.00 s If it's fired horizontally, then all of the ...
September 10, 2006 by JC

science
Find the horizontal and vertical components of the velocity of a cannonball 4 seconds after being fired horizontally at 400 m/s from the edge of a tall cliff.
September 4, 2012 by Erika

physics
a cannon fire a bullet into a castle. leave the gun with velocity of 110 with an angle of 20. the bullet reaches highest point at P when it is 1 m above the castle. What is the height of the top of the castle? and waht is the horizontal distamce between the accnon and the castle
February 5, 2012 by Elise

Physics
Someone posted the question below, stating that they knew the answer to part A but needed help with part B. Well even with the answer for A, I can't figure it out! Can you take a step back from the question below to show me the steps for solving part A? I've been working on ...
October 14, 2008 by Anna

PHYSICS
A cannon is fired horizontally from atop a 40.0 m tower. The cannonball travels 175 m horizontally before it strikes the ground. With what velocity did the ball leave the muzzle?
December 20, 2010 by marco

Physics
A cannon is fired horizontally from atop a 40.0 m tower. The cannonball travels 145 m horizontally before it strikes the ground. With what velocity did the ball leave the muzzle?
December 22, 2010 by Anonymous

physics
cannon is on top of the hill which is 60 meters from the ground. A cannonball is being blast with an initial velocity of 25 meters per seconds. What the maximum height it can reach?
October 4, 2011 by Anonymous

physics problem
A cannon is fired horizontally from atop a 40.0 m tower. The cannonball travels 175 m horizontally before it strikes the ground. With what velocity did the ball leave the muzzle?
December 20, 2010 by marco

physics.
A 20.0 kg cannon ball is fired from a cannnon with muzzle speed of 1000 m/s at an angle of 37.0 with the horizontal. A second ball is fired at an angle of 90.0. Use the conservation of energy principle to find a] the maximum height reached by each ball and b] the total ...
March 15, 2007 by Jean

college physics
(Projectile Motion) You are being asked to bombard an enemy fortress that sits on a 40 m tall cliff 100 m from your location. Your cannon has an elevation of 37 degrees. What velocity must your cannonball have to hit the walls of the fortress?
November 29, 2009 by dave

Physics
If a cannonball and a BB have the same speed, which has the longer wavelength?
April 2, 2008 by Jake

physics
a cannonball is fired straight up at 60m/s. how long does the flight last?
October 4, 2011 by Maggie

Physics
You are a general in the Napoleonic wars. An enemy fort 10m tall is located 1000m from your cannon. Your cannon expert is insisting that you will get the best results at an angle of 25 above the horizontal. Your cannon is located on a hill 10m tall. You have soldiers storming ...
February 19, 2014 by Michelle

Physics
You are a general in the Napoleonic wars. An enemy fort 10m tall is located 1000m from your cannon. Your cannon expert is insisting that you will get the best results at an angle of 25 above the horizontal. Your cannon is located on a hill 10m tall. You have soldiers storming ...
February 22, 2014 by Michelle

pre algebra with pizzazz 239
why didn't the circus managers want their human cannonball to quit?
October 27, 2011 by marcus

astronomy
if you shoot a cannonball due north from a latitude of -45o where will it fall 100km from the cannon
January 28, 2011 by Anonymous

college physics
A cannonball shot at an angle of 60 Degrees had a range of 196m. What was its initial speed?
October 30, 2012 by Gee

physics
a cannonball is fired horizontally straight up at a modest speed of 9.8. Compute its maximum altitude and the time it takes to reach that height
October 15, 2011 by Anonymous

science
when a long-range cannonball is fired towards the equator from a northern (or southern) latitude, it lands west of its "intended" longitude. Why?
November 11, 2013 by Libertika

Physics
A cannon of mass 200kg, fires a cannonball with a mass of 10kg. The cannon ball leaves the barrel of the cannon with a velocity of 60 m/s. Using the law of conservation of momentum , explain what happens to the cannon when the cannon ball is fired. (Answer should include ...
March 22, 2011 by Nelly

physics
Rhonda Vous, the 445N human cannonball, is shot from her cannon, leaving it at 18.0 m/s. How much work did the cannon do on her?
December 7, 2011 by beth

physics
10. A cannon elevated at an angle of 35 to the horizontal fires a cannonball, which travels the path shown in the diagram below. [Neglect air resistance and assume the ball lands at the same height above the ground from which it was launched.] If the ball lands 7.0 10 ...
November 12, 2009 by Physics Student need help

Physics
At time t = 0, you shoot a cannonball horizontally from the roof of a building at a velocity of 10 m/s. The building has a height of 80 m. Assume g = 10 m/s2 and that there is no air resistance. Write down the algebraic velocity equation for the y-direction of the ball with ...
June 18, 2012 by Katie

Physics
At time t = 0, you shoot a cannonball horizontally from the roof of a building at a velocity of 10 m/s. The building has a height of 80 m. Assume g = 10 m/s2 and that there is no air resistance. Write down the algebraic velocity equation for the y-direction of the ball with ...
June 18, 2012 by Katie

physics
A 530 cannon fires a 12 cannonball with a speed of 200 relative to the muzzle. The cannon is on wheels that roll without friction.
November 30, 2011 by Anonymous

Physics
I have a projectile motion question. If let's say a cannon which was placed on a moving cart with negligible friction projects a cannonball straight up in the air where will it fall? Would it be behind the cannon, on the rider or fall straight down back into the cannon? And ...
September 17, 2011 by Jen

Physics
True or False: If a cannon fires a cannonball in an easterly direction, the tendency of the cannon to move to the west is a result of the principle of conservation of energy.
December 13, 2011 by David

algebra
a cannonaball is fired stright up into the air at a speed of 80 ft/sec from a height of 2ft. A. when will the cannon ball be 98 ft in the air? B. when will the cannonball hit the ground?
January 27, 2012 by poi

physics
if you were in a spaceship in the furthest depths of space, and you fired a cannonball into space, what force would you have to exert on the ball to keep it moving?
May 2, 2012 by lisa

physics
A human cannonball is launched from a cannon at 26.4 m/s at 20.4 degrees above the horizontal. (Assume he/she lands in a net the same height as the cannon.) How high in the air does he/she go?
May 16, 2013 by John

physics
A cannonball is fired horizontally from the top of a cliff. The cannon is at height = 70.0 above ground level, and the ball is fired with initial horizontal speed . Assume acceleration due to gravity to be = 9.80 .
February 4, 2011 by Anonymous

math
A cannonball is fired across a field. Its height above the ground after t seconds is given by -16t^2+104. How long does it take for the ball to reach its maximum height of 169 feet?
October 2, 2013 by manda

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