Sunday

April 20, 2014

April 20, 2014

Number of results: 3,551

**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 ...
*Friday, September 26, 2008 at 8:59pm by Sam*

**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 ...
*Monday, September 18, 2006 at 8:17pm by puff puff*

**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?
*Monday, December 20, 2010 at 6:30pm 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?
*Wednesday, December 22, 2010 at 9:13am by Anonymous*

**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?
*Wednesday, December 22, 2010 at 9:13am 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?
*Monday, December 20, 2010 at 6:40pm by marco*

**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 .
*Friday, February 4, 2011 at 4:37pm by Anonymous*

**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 ...
*Saturday, March 8, 2014 at 1:40pm by Josh*

**Physics**

If you are "marco", you clearly need a tutor full time. H means height, g is a very universal symbol for the acceleration due to gravity. http://www.jiskha.com/search/index.cgi?query=A+cannon+is+fired+horizontally+from+atop+a+40.0+m+tower.+The+cannonball+travels+145+m+...
*Wednesday, December 22, 2010 at 9:13am by bobpursley*

**physics**

a cannonball is fired horizontally from the top of a cliff. the cannon is at height H=60.0m above ground level , and the ball is fired with initial horizontal speed v_0 .assume acceleration due to gravity to be g=9.80 find d/2 int terms of v_0
*Sunday, November 27, 2011 at 11:37am by boboooo*

**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
*Saturday, October 15, 2011 at 5:15pm by Anonymous*

**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.
*Tuesday, September 4, 2012 at 1:01pm by Erika*

**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 ...
*Sunday, September 10, 2006 at 2:20pm by JC*

**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 ...
*Tuesday, October 14, 2008 at 11:43pm by Anna*

**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?
*Sunday, September 19, 2010 at 10:36pm by Anonymous*

**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 .
*Saturday, April 20, 2013 at 12:58am by jeff*

**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 ...
*Sunday, June 19, 2011 at 5:44pm 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 ...
*Monday, March 5, 2012 at 11:14am by Haley*

**Science**

A revolutionary war cannon, with a mass of 2170 kg, fires a 18.1 kg ball horizontally. The cannonball has a speed of 146 m/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 immedi- ately ...
*Monday, October 18, 2010 at 11:03pm by Cole*

**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?
*Monday, April 16, 2012 at 9:04pm by Kelly *

**physics**

King Arthur's knights fire a cannon from the top of the castle wall. The cannonball is fired at a speed of 45 and an angle of 28 above horizontal. A cannonball that was accidentally dropped hits the moat below in 1.6 .
*Tuesday, September 21, 2010 at 11:58am by chris*

**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?
*Thursday, September 26, 2013 at 5:03pm 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?
*Thursday, September 26, 2013 at 5:08pm by Anonymous*

**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 ...
*Tuesday, October 23, 2012 at 11:05pm by Anne*

**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...
*Sunday, March 28, 2010 at 2:43pm by Bill Williams*

**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?
*Wednesday, November 23, 2011 at 4:14pm by Ula*

**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}
*Tuesday, January 25, 2011 at 11:35pm by andrea*

**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 ...
*Wednesday, April 24, 2013 at 12:27pm by bern*

**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?)
*Saturday, April 27, 2013 at 3:21pm 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?)
*Sunday, September 22, 2013 at 10:26pm by Miss Angie*

**physics**

Use the dropped cannonball's fall time (1.6 s) to compute the height of the top of the castle. H = (g/2)t^2 = 12.54 m (a) In this case, assume they are talking about the fired cannonball, not the dropped one. Solve this equation for time of flight t: H = 12.54 -(g/2)t^2 + ...
*Monday, March 5, 2012 at 11:14am by drwls*

**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 ...
*Monday, December 10, 2012 at 9:23am by Jeremie*

**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?)
*Sunday, August 4, 2013 at 6:25pm by Jason*

**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...
*Sunday, January 26, 2014 at 6:05pm by Henry*

**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 ...
*Thursday, April 25, 2013 at 3:51pm by Chris*

**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 ...
*Tuesday, November 24, 2009 at 1:25am by veronica*

**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...
*Tuesday, September 8, 2009 at 9:00pm by jawn*

**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 ...
*Wednesday, August 29, 2012 at 6:40pm 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 ...
*Saturday, September 8, 2012 at 2:40pm by ali*

**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 ...
*Thursday, February 16, 2012 at 3:51pm by Anonymous*

**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...
*Tuesday, September 11, 2012 at 10:09pm 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...
*Tuesday, September 11, 2012 at 10:12pm 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...
*Tuesday, September 11, 2012 at 10:16pm 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...
*Tuesday, September 11, 2012 at 10:16pm by Kayla*

**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?
*Friday, April 11, 2014 at 3:06pm by Michelle*

**physics**

a cannonball is fired straight up at 60m/s. how long does the flight last?
*Tuesday, October 4, 2011 at 9:35pm by Maggie*

**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 ...
*Friday, June 15, 2012 at 7:48pm by daniel*

**physics**

Consider a projectile fired horizontally from a cliff of a given height. With what speed must it be fired so that it makes a 45 degree angle with the ground when it hits
*Friday, September 24, 2010 at 3:43am by Ligu*

**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 ...
*Thursday, March 15, 2007 at 5:38am by Jean*

**Physics**

An arrow is fired horizontally from the top of a 40.0-m vertical cliff and lands 125 m away. Therefore the arrow was fired at _____ m/s.
*Saturday, May 18, 2013 at 6:51pm by Jenna*

**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?
*Friday, March 5, 2010 at 9:19am 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?
*Tuesday, March 16, 2010 at 11:06pm by Krysten*

**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 ...
*Monday, February 17, 2014 at 2:34pm 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 ...
*Wednesday, February 19, 2014 at 8:57pm by Michelle*

**Physic**

a bullet is fired from at a shooting range. The bullet hits the ground after .32 seconds. How far did it travel horizontally and vertically in this time if it was fired at a velocity of 1100 m/s?
*Tuesday, February 11, 2014 at 12:44pm by Marie*

**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?
*Monday, November 11, 2013 at 3:56am by Libertika*

**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 ...
*Monday, February 17, 2014 at 2:43pm 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 ...
*Wednesday, February 19, 2014 at 8:56pm by Michelle*

**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 ...
*Wednesday, October 24, 2007 at 3:16pm by Tammy*

**physics**

Atop a cliff, a projectile is fired horizontally with an initial speed of 10 m/s. Neglecting air drag, what is its speed 1 second after it is fired? A) 20 m/s.B) 14 m/s.C) 30 m/s. D) 28 m/s.E) 10 m/s.
*Monday, March 5, 2012 at 10:54am by jim*

**Physics**

A dart gun is located 1 meter above the floor and is fired horizontally. the dart travels a horizontal distance of 4 meters when it hits the floor. what is the initial velocity if the dart when fired?
*Tuesday, March 5, 2013 at 12:59pm by ryan*

**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?
*Wednesday, May 2, 2012 at 8:27pm by lisa*

**physics**

Atop a cliff, a projectile is fired horizontally with an initial speed of 10 m/s. Neglecting air drag, what is its speed 1 second after it is fired? A) 20 m/s.B) 14 m/s.C) 30 m/s.D) 28 m/s.E) 10 m/s. would this be 10 m/s?
*Tuesday, March 6, 2012 at 4:26am by jim*

**physics**

A pistol is fired horizontally and the bullet has a muzzle velocity (speed with which the bullet leaves the barrel) of 31.3 m/s. The gun is 50 m above the surrounding terrain. a) How far away does the bullet land measured horizontally from a point directly beneath the gun? You...
*Wednesday, March 7, 2012 at 12:00am by Xin Zhang*

**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?
*Wednesday, October 2, 2013 at 11:50am by manda*

**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 ...
*Monday, February 28, 2011 at 4:42pm by Allison*

**physics**

sir, it was fired horizontally.
*Monday, January 9, 2012 at 5:20pm by ellah*

**physics**

sir, it was fired horizontally.
*Monday, January 9, 2012 at 5:20pm by ellah*

**Physics**

A space station in the form of a large wheel, 200m in diameter, rotates to provide an "artificial gravity" of 9.9m/s^2 for people located at the outer rim. What is the frequency of the rotational motion for the wheel to produce this effect? Answer in units of rev/min. ...
*Monday, September 18, 2006 at 7:36pm by puff puff*

**physics**

The first bits of information can be used to determine the muzzle velocity of the gun. Call that velocity Vm. Let T be the time it takes to hit the ground when fired horizontally. 7.76 m = Vm*T (1/2)gT^2 = 1.38 m T = 0.531 s Vm = 14.6 m/s When sliding down the 28.8 degree ...
*Saturday, September 4, 2010 at 2:39pm by drwls*

**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?
*Friday, January 27, 2012 at 5:55pm by poi*

**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?
*Friday, December 2, 2011 at 12:23am by Jacqueline*

**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?
*Saturday, February 26, 2011 at 8:11pm by Tina*

**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?
*Wednesday, February 10, 2010 at 2:30pm by Lanell*

**physics**

a cannon with a mass of 1200 kilograms is positioned at the edge of a cliff where it fires a 100 kilogram cannonball horizontally. The cannonballs initial speed is 35 meters per second. What is the recoil of speed of the cannon.
*Thursday, April 4, 2013 at 11:15am by lauren*

**physics**

a cannonball is fired with initial speed v0 at an angle 30 degrees above the horizontal from a height of 40m above the ground. the projetile strikes the ground with a speed of 1.2v0. find v0.
*Thursday, September 22, 2011 at 7:24am by Angela*

**other**

A cannon mounted on a pirate ship fires a cannonball at 125 m/s horizontally, at a height of 17.5 m above the ocean surface. Ignore air resistance. (a) How much time elapses until it splashes into the water? (b) How far from the ship does it land?
*Wednesday, December 15, 2010 at 5:18pm by katerina C.*

**physics**

A cannon mounted on a pirate ship fires a cannonball at 125 m/s horizontally, at a height of 17.5 m above the ocean surface. Ignore air resistance. (a) How much time elapses until it splashes into the water? (b) How far from the ship does it land?
*Wednesday, December 15, 2010 at 5:39pm by katerina C.*

**physics**

A cannon mounted on a pirate ship fires a cannonball at 125 m/s horizontally, at a height of 17.5 m above the ocean surface. Ignore air resistance. (a) How much time elapses until it splashes into the water? (b) How far from the ship does it land?
*Wednesday, December 15, 2010 at 7:02pm by matt chirl*

**physics**

A cannon mounted on a pirate ship fires a cannonball at 125 m/s horizontally, at a height of 17.5 m above the ocean surface. Ignore air resistance. (a) How much time elapses until it splashes into the water? (b) How far from the ship does it land?
*Thursday, December 16, 2010 at 6:21am by tammy mikols*

**physics**

If an arrow is fired at 200km/h horizontally, about how long will it take to strike a target 30 meters away?
*Thursday, January 21, 2010 at 12:02am by Kristin *

**physics**

A canon mounted on a pirate ship fires a cannonball at 125 m/s horizontally, at a height of 17.5m above the ocean surface. Ignore air resistance. (a) How much time elapses until it splashes into the water? (b) How far from the ship does it land?
*Tuesday, February 26, 2013 at 12:02am by Susan*

**physics**

A cannon is fired horizontally from a platform (see figure). The platform rests on a flat, icy, frictionless surface. Just after the shell is fired and while it is moving through the barrel of the gun, the shell (mass 3.0 kg) has an acceleration of +2450 m/s2. At the same time...
*Friday, September 16, 2011 at 10:15pm by angela*

**physics**

A bullet of mass 4.7 g is fired horizontally into a 2.4 kg wooden block at rest on a horizontal surface. The coefficient of kinetic friction between block and surface is 0.28. The bullet stops in the block, which slides straight ahead for 2.2 m (without rotation). (a) What is ...
*Tuesday, November 8, 2011 at 1:12pm by Mark*

**Physics**

A cannonball is fired with initial speed v0 at an angle 30° above the horizontal from a height of 36.0 m above the ground. The projectile strikes the ground with a speed of 1.3v0. Find v0. (Ignore any effects due to air resistance.) HELP NEEDED!!!
*Wednesday, September 12, 2012 at 7:03pm by Lulu*

**physics**

A bullet was fired horizontally from the top of a 1.5x10^2 m tall tower at 2.8x10^2 m/s. Determine its speed on impact with the ground below.
*Monday, September 23, 2013 at 8:12pm by Brian*

**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?
*Monday, September 10, 2012 at 8:00pm by Max*

**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 ...
*Tuesday, March 22, 2011 at 6:57pm by Nelly*

**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
*Wednesday, September 29, 2010 at 6:18pm 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
*Sunday, October 3, 2010 at 4:09pm by Jibri*

**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.
*Wednesday, February 2, 2011 at 8:08pm 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.
*Wednesday, February 23, 2011 at 6:28pm 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.
*Wednesday, February 1, 2012 at 10:57pm by Erin*

**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.
*Wednesday, October 3, 2012 at 12:36pm 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.
*Wednesday, October 3, 2012 at 10:45pm 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.
*Friday, February 22, 2013 at 8:25pm by Ronnica*

**Science**

how to find the speed of a bullet just before it touches the ground when fired horizontally at a velocity 10 m/s from a watch tower 11.5 m high?
*Wednesday, April 17, 2013 at 12:56pm by Santanu*

**Physics**

A non-rotating spherical planet with no atmosphere has a mass M and radius R. A particle is fired off from the surface with a speed equal to 3/4 the escape speed. Calculate the farthest distance it reaches (measured from the center of the planet) if it is fired tangentially. I...
*Tuesday, March 23, 2010 at 8:48pm by Avery*

**Physics**

A non-rotating spherical planet with no atmosphere has a mass M and radius R. A particle is fired off from the surface with a speed equal to 3/4 the escape speed. Calculate the farthest distance it reaches (measured from the center of the planet) if it is fired tangentially. I...
*Wednesday, March 24, 2010 at 12:05am by Avery*

**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 ...
*Wednesday, October 30, 2013 at 1:35am by Lily*

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