Thursday

November 27, 2014

November 27, 2014

Number of results: 26,413

**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(work and energy)**

A cannon ball is fired so that it hits the wall at the top of a 10m tower.If the energy needed to destroy the wall is 49000 F and the mass of the cannon ball is 10 k, the minimum initial velocity of the cannon ball required to break the tower wall is A 100 m/s b 200 m/s c 300 ...
*May 20, 2012 by TOM*

**college physics**

During a circus act, an elderly performer thrills the crowd by catching a cannon ball shot at him. The cannon ball has a mass of 10.0 kg and the horizontal component of its velocity is 8.00 m/s when the 65.0-kg performer catches it. If the performer is on nearly frictionless ...
*March 24, 2014 by Mohanad*

**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 large metal ball is shot from a cannon with a short barrel. If the same ball were to be shot from cannon with a longer barrel, its muzzle velocity would be a. less. b. more. c. the same. d. impossible to determine without additional information.
*February 6, 2011 by Anonymous*

**Physics**

A cannon is rigidly attached to a carriage,which can move along horizontal rails but is connected to a post by a large spring, initially unstretched, of force constant 60000 N/m. The cannon ﬁres a 305 kg projectile at a velocity of 174 m/s directed 38.9◦ above the...
*January 29, 2012 by amanda and leah*

**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**

A cannon is used by the department of forestry to launch containers of fire retardant on to a fire. the cannon is at a distance of 1kilometre from a cliff that is 0.5kilometre high from the ground and the fire is 1kilometre away from the base of the cliff. if the retardant ...
*October 15, 2011 by Abel*

**Physics**

The captain sinks a ship located x distance away with a cannon located on the top of a cliff that is 65m high. if the cannon ball has a velocity of 55m/s and the captain sinks the ship, how far was the ship from the base of the cliff. I got 731.5 meters. is that right?
*October 28, 2010 by Amy*

**physics**

You have an spring gun. The end of the gun is at 1 meter above the ground. This gun is shoot horizontally with no air resistance. The cannon ball hits the ground 1.32 meters ahead from it was shoot. What is the cannon ball's initial velocity?
*June 14, 2014 by Ash*

**Physics**

2. A solid block of water (m = 10 grams, Ti = -4 degrees Celsius) is shrink wrapped in an ultra thin super plastic (that has absolutely no effect on the interaction between its contents and the surrounding environment) and is placed as ammo inside a spring loaded cannon. The ...
*December 10, 2012 by Darlynn*

**Physics**

A solid block of water (m = 10 grams, Ti = -4 degrees Celsius) is shrink wrapped in an ultra thin super plastic (that has absolutely no effect on the interaction between its contents and the surrounding environment) and is placed as ammo inside a spring loaded cannon. The ...
*December 11, 2012 by Darlynn*

**physics**

A cannon ball is fired horizontally with an initial speed of 75 m/s from the top of a 50 m tall building. When the ball hits the ground, its velocity vector makes an angle with the horizontal. What is the angle?
*September 18, 2013 by Tonya*

**physics**

A cannon ball is fired horizontally with an initial speed of 75 m/s from the top of a 50 m tall building. When the ball hits the ground, its velocity vector makes an angle with the horizontal. What is the angle?
*September 18, 2013 by Tonya*

**Physics**

A daredevil is shot out of a cannon at 45.0° to the horizontal with an initial speed of 28.0 m/s. A net is positioned a horizontal distance of 51.0 m from the cannon. At what height above the cannon should the net be placed in order to catch the daredevil?
*September 30, 2010 by Caroline*

**Physics**

HOW DO I DO THIS? A daredevil is shot out of a cannon at 45.0° to the horizontal with an initial speed of 28.0 m/s. A net is positioned a horizontal distance of 51.0 m from the cannon. At what height above the cannon should the net be placed in order to catch the daredevil?
*September 30, 2010 by Maddy*

**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 *

**physics**

A spring cannon is located at the edge of a table that is 1.70 m above the floor. A steel ball is launched from the cannon with speed v0 at 25.0° above the horizontal. (a) Find the horizontal displacement component of the ball to the point where it lands on the floor as a ...
*February 16, 2011 by Anonymous*

**physics**

A daredevil is shot out of a cannon at 43.0° to the horizontal with an initial speed of 25.0 m/s. A net is positioned a horizontal distance of 50.0 m from the cannon. At what height above the cannon should the net be placed in order to catch the daredevil? please walk me ...
*November 8, 2010 by alecia*

**Physics**

A cannon ball is fired with a velocity of 200 m\s2 at an < of 25° above ground. The total flight time is 45.6 seconds. (Neglect air resistance.) a. Calculate the initial horizontal\vertical components of the velocity b. Calculate maximum height of the cannon ball above ground
*October 23, 2012 by Shannon*

**Physics**

A daredevil is shot out of a cannon at 54 degrees to the horizontal with an initial speed of 33.3 m/s. A net is positioned a horizontal distance of 41.8 m from the cannon. At what height above the cannon should the net be placed in order to catch the daredevil? The ...
*September 19, 2011 by Ronald*

**physics**

A daredevil is shot out of a cannon at 41.6 ◦ to the horizontal with an initial speed of 28.6 m/s. A net is positioned a horizontal distance of 29 m from the cannon. At what height above the cannon should the net be placed in order to catch the daredevil? The ...
*September 20, 2012 by asdfghjk*

**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*

**physics**

After landing safely on the target the cat tries another projectile apparatus. This time the cat is shot out of a cannon over a 30 m high wall. The cat is launched at an angle of 55º0 and can be assumed to be at ground level during launch. With what speed (in km/h) does it ...
*January 21, 2013 by luellen*

**physics**

A projectile fired vertically up from a cannon rises 200 m before returning to the ground. If the same cannon were to fire the same projectile at an angle 45 degrees, then the maximum rangerange would be m.
*December 15, 2010 by mc*

**physics**

A projectile fired vertically up from a cannon rises 200 m before returning to the ground. If the same cannon were to fire the same projectile at an angle 45 degrees, then the maximum range would be m.
*December 15, 2010 by mc*

**Physics**

A projectile of mass 0.377 kg is shot from a cannon, at height 6.6 m, as shown in the figure, with an initial velocity vi having a horizontal component of 6.1 m/s. The projectile rises to a maximum height of y above the end of the cannon’s barrel and strikes the ground a ...
*September 23, 2014 by Bob*

**Physics**

A cannon ball is shot from a cannon with a horizontal velocity of 200m/s. What is the time until impact on a target 50m downrange? What is the objects horizontal velocity at impact (ignoring air resistance)?
*October 7, 2011 by Tatiana*

**Physics**

A cannon is fired horizontally from atop a 40.0 m tower. The cannonball travels 180 m horizontally before it strikes the ground. With what velocity did the ball leave the muzzle? Okay so this is my work for this problem. please help If I did something wrong. Thanks! 40=1/2(9.8...
*September 13, 2014 by Alexandra *

**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**

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*

**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*

**Physics**

A projectile of mass 0.99 kg is shot from a cannon. The end of the cannon’s barrel is at height 6.6 m, as shown in the figure. The initial velocity of the projectile is 9.2 m/s. The projectile rises to a maximum height of ∆y above the end of the cannon’s barrel and ...
*November 23, 2014 by Alexis*

**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**

A cannon ball whose barrel is angled at 40˚ from the horizontal fires a shell with a muzzle velocity of 350 m/s. What is the resultant velocity of the shell when it lands?
*June 25, 2013 by Lynn*

**Physical Sciene**

A cannon is fired horizontally from a top of a 15-m platform. What is the cannon balls horizontal speed when it hits the ground 250 m downrange?
*November 1, 2011 by Diana*

**physics**

At a circus, a human cannonball is shot from a cannon at 15m/s at an angle of 40 degrees from horizontal. She leaves the cannon 1m off the ground and lands on the way down in a net 2m off the ground. Determine her horizontal displacement.
*February 13, 2012 by Ed*

**science**

Assume we have a cannon which has a mass of 572 stones. Stones is an English unit. Which fires a projective which has a mass of 40 pounds horizontally. The projective has a velocity of 9,000,000 football fields/fortnight. (A football field is 120 yards. A fortnight is 14 days...
*February 14, 2008 by tabitha*

**physics**

A cannon is fired horizontally from a platform . 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 3.2 kg) has an acceleration of 12500 m/s2. At the same time, the cannon...
*September 30, 2014 by sara*

**physical**

A 65.0-kg circus performer is fired from a cannon that is elevated at an angle of 55.8 ¡ã above the horizontal. The cannon uses strong elastic bands to propel the performer, much in the same way that a slingshot fires a stone. Setting up for this stunt involves stretching the ...
*May 24, 2014 by LEHUAN*

**physics**

A 65.0-kg circus performer is fired from a cannon that is elevated at an angle of 55.8 ¡ã above the horizontal. The cannon uses strong elastic bands to propel the performer, much in the same way that a slingshot fires a stone. Setting up for this stunt involves stretching the ...
*May 24, 2014 by Bin*

**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...
*September 16, 2011 by angela*

**Physics**

A 70-kg circus performer is fired from a cannon that is elevated at an angle of 43° above the horizontal. The cannon uses strong elastic bands to propel the performer, much in the same way that a slingshot fires a stone. Setting up for this stunt involves stretching the bands ...
*February 26, 2014 by Anonymous*

**physics**

A projectile of mass 0.777 kg is shot from a cannon, at height 6.6 m, as shown in the ﬁgure, with an initial velocity vi having a horizontal component of 7.8m/s. The projectile rises to a maximum height of ∆y above the end of the cannon’s barrel and strikes the ...
*October 4, 2011 by steve*

**physics**

A cannon fires a shell at an angle of 20º to the horizontal. The shell reaches a range of 436 meters, landing at the same elevation as the starting point. What was the initial velocity of the shell
*October 22, 2011 by Anonymous*

**PLEASE HELP ME!**

A 68.6-kg circus performer is fired from a cannon that is elevated at an angle of 43.6° above the horizontal. The cannon uses strong elastic bands to propel the performer, much in the same way that a slingshot fires a stone. Setting up for this stunt involves stretching the ...
*December 1, 2012 by Jessica*

**physics**

. A cannon ball is fired horizontally with an initial speed of 75 m/s from the top of a 50-m tall building. When the ball hits the ground, its velocity vector makes an angle θ with the horizontal. What is θ ?
*June 27, 2013 by vector*

**Physics**

A cannon is rigidly attached to a carriage,which can move along horizontal rails but is connected to a post by a large spring, initially unstretched, of force constant 60000 N/m. The cannon ﬁres a 305 kg projectile at a velocity of 174 m/s directed 38.9◦ above the...
*January 29, 2012 by amanda and leah*

**Physics**

Given an angle of 30 degrees, find the minimum initial speed of a cannon ball that travels in a horizontal distance of 15000 mi.
*August 25, 2014 by Kadu*

**Physics**

A projectile of mass 0.46 kg is shot from a cannon, at height 6.8 m, as shown in the ﬁgure, with an initial velocity vi having a horizontal component of 7.1m/s. The projectile rises to a maximum height of ∆y above the end of the cannon’s barrel and strikes the ...
*September 26, 2011 by yolanda*

**Physics**

A projectile of mass 0.46 kg is shot from a cannon, at height 6.8 m, as shown in the ﬁgure, with an initial velocity vi having a horizontal component of 7.1m/s. The projectile rises to a maximum height of ∆y above the end of the cannon’s barrel and strikes the ...
*September 26, 2011 by yolanda*

**Physics**

A projectile of mass 0.46 kg is shot from a cannon, at height 6.8 m, as shown in the ﬁgure, with an initial velocity vi having a horizontal component of 7.1m/s. The projectile rises to a maximum height of ∆y above the end of the cannon’s barrel and strikes the ...
*September 26, 2011 by yolanda*

**pysics**

A projectile of mass 0.777 kg is shot from a cannon, at height 6.6 m, as shown in the ﬁgure, with an initial velocity vi having a horizontal component of 7.8m/s. The projectile rises to a maximum height of ∆y above the end of the cannon’s barrel and strikes the ...
*October 4, 2011 by steve*

**physics**

A cannon is fired from a cliff 190 m high downward at an angle of 21° with respect to the horizontal. If the muzzle velocity is 34 m/s, what is its speed (in m/s) when it hits the ground?
*February 1, 2012 by qwertzuiop*

**physics**

A cannon is fired from a cliff 190 m high downward at an angle of 21° with respect to the horizontal. If the muzzle velocity is 34 m/s, what is its speed (in m/s) when it hits the ground?
*February 2, 2012 by qwertzuiop*

**Physics **

A cannon is fired from a cliff 190 m high downward at an angle of 21° with respect to the horizontal. If the muzzle velocity is 34 m/s, what is its speed (in m/s) when it hits the ground?
*February 2, 2012 by Lisa*

**Physics **

A cannon is fired from a cliff 190 m high downward at an angle of 21° with respect to the horizontal. If the muzzle velocity is 34 m/s, what is its speed (in m/s) when it hits the ground?
*February 4, 2012 by sarah*

**physics**

A cannon is fired from a cliff 200 m high downward at an angle of 30o with respect to the horizontal. If the muzzle velocity is 34 m/s, what is its speed (in m/s) when it hits the ground?
*September 21, 2010 by Anonymous*

**physics **

A cannon is fired from a cliff 200 m high downward at an angle of 30o with respect to the horizontal. If the muzzle velocity is 34 m/s, what is its speed (in m/s) when it hits the ground?
*September 21, 2010 by Anonymous*

**physics**

A cannon is fired from a cliff 200 m high downward at an angle of 30o with respect to the horizontal. If the muzzle velocity is 34 m/s, what is its speed (in m/s) when it hits the ground?
*September 22, 2010 by roxy*

**physics**

A cannon is fired from a cliff 200 m high downward at an angle of 30o with respect to the horizontal. If the muzzle velocity is 34 m/s, what is its speed (in m/s) when it hits the ground?
*September 22, 2010 by Anonymous*

**Physics**

A cannon ball whose barrel is angled at 40˚ from the horizontal fires a shell with a muzzle velocity of 350 m/s. What is the horizontal and vertical component of the muzzle velocity and what is the range of the shell?
*June 25, 2013 by Lynn*

**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*

**college physics **

A cannon is fired from a cliff 200 m high downward at an angle of 30o with respect to the horizontal. If the muzzle velocity is 34 m/s, what is its speed (in m/s) when it hits the ground?
*September 21, 2010 by roxy*

**physics (please help!)**

A projectile of mass 0.539 kg is shot from a cannon. The end of the cannon’s barrel is at height 6.4 m, as shown in the figure. The initial velocity of the projectile is 9 m/s . How long does it take the projectile to hit the ground? Answer in units of s
*September 21, 2011 by meagan*

**physics/ 2D motion**

A projectile of mass 0.539 kg is shot from a cannon. The end of the cannon’s barrel is at height 6.4 m, as shown in the figure. The initial velocity of the projectile is 9 m/s . How long does it take the projectile to hit the ground? Answer in units of s
*September 25, 2011 by meagan*

**science**

Why is the acceleration the same between a tennis ball and a cannon ball?
*December 15, 2010 by Addison*

**Physics**

A cannon is fired from a cliff 190 m high downward at an angle of 38o with respect to the horizontal. If the muzzle velocity is 41 m/s, what is its speed (in m/s) when it hits the ground? Which equations do I need for this?
*November 8, 2007 by Lindsay*

**physis**

if someone dropped a 2.13 kg cannon ball from the 57.3 m tower of pisa, how much did gravity do on the ball
*October 6, 2010 by mini*

**Physics**

1) A particle travels between two parallel vertical walls separated by 16 m. It moves toward the opposing wall at a constant rate of 6.4 m/s. It hits the opposite wall at the same height. The acceleration of gravity is 9.8 m/s. a) What will be its speed when it hits the ...
*June 16, 2011 by Lia*

**science**

what, if anything, happens to the speed of a fighter plane when it fires a cannon at an enemy plane in front of it?
*February 19, 2007 by tasha*

**physics**

a satellite can be launched into orbit through use of a specialized cannon that measured 18.0 meters in length. what would the average acceleration through this cannon have to be in order to have a muzzle velocity of 29000 km/h ?
*January 30, 2011 by jafara*

**math**

The estimated monthly profit (in dollars) realizable by Cannon Precision Instruments for manufacturing and selling x units of its model M1 digital camera is as follows. p(x)=-0.07x^2+322x-96,000 To maximize its profits, how many cameras should Cannon produce each month? ? cameras
*November 15, 2012 by Britney*

**science**

a shell is fired from the cannon. the shell of mass 30kg is shot with an initial velocity of 30m/s. what is the momentum of the cannon just after the shell is shot ?
*April 14, 2010 by chiara*

**Physics**

1. A cannon mounted on the back of a ship fires a 50.0 kg cannonball in the horizontal direction at a speed of 150 m/s. If the cannon and ship to which it is firmly attached have a mass of 4.00 x 103 kg and are initially at rest, what is the speed of the ship just after ...
*September 18, 2014 by Ashley*

**physic**

In a friendly game of handball, you hit the ball essentially at ground level and send it toward the wall with a speed of 26m/s at an angle of 35^\circ above the horizontal.How high is the ball when it hits the wall?
*July 14, 2012 by aa*

**principles of pysics**

A cannon with a long barrel fires a shell faster because the shell experiences a greater ____________________. A) change in inertia. B) impulse. C) acceleration. D) None of these.
*February 19, 2012 by Anonymous*

**principles of physics**

6. A cannon with a long barrel fires a shell faster because the shell experiences a greater ____________________. A) change in inertia. B) impulse. C) acceleration. D) None of these.
*February 19, 2012 by britches*

**physics**

A daredevil is shot out of a cannon at 36.5◦ to the horizontal with an initial speed of 36.1 m/s. A net is positioned a horizontal distance of 25.7 m from the cannon. At whatheight abovethecannon shouldthe net be placed in order to catch the daredevil? The acceleration ...
*August 28, 2014 by Anonymous*

**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*

**Physics (Velocity in two dimensions)**

Please explain, A clown in a circus is about to be shot out of a cannon with a muzzle velocity of 15.2 m/s, aimed at 52.7° above the horizontal. How far away should his fellow clowns position a net to ensure that he lands unscathed? The net is at the same height as the mouth ...
*February 23, 2013 by Kathy*

**physics**

problem says that a cannon ball is fired at a 30 degree angle off a 10 meter high wall at 80 m/s. Use work and energy to find it's impact speed. I worked out this out with the equation: (1/2)(mass)(initial velocity)^2 + mgy = (1/2)(mass) (final velocity)^2 + mg(y final) i got ...
*November 9, 2010 by Taylor*

**Physics**

A cannon ball is fired horizontally with velocity of 15m from the top of a cliff 90m high.after how many seconds will it hit the foot of the cliff(a)time (b)at what distance from the foot of the cliff will it strike.
*October 25, 2014 by Anonymous*

**Physics repost**

A cannon is fired from a cliff 190 m high downward at an angle of 38o with respect to the horizontal. If the muzzle velocity is 41 m/s, what is its speed (in m/s) when it hits the ground? I keep getting 64.28 m/s as my answer, but it's not right. Could someone tell me exactly ...
*November 9, 2007 by Lindsay*

**physics**

In 1939 or 1940, Emanuel Zacchini took his human-cannonball act to an extreme: After being shot from a cannon, he soared over three Ferris wheels and into a net (see the figure). Assume that he is launched with a speed of 28 m/s and at an angle of 56°. (a) Treating him as a ...
*September 19, 2013 by kristy*

**physics**

A 1.2 kg cannon ball is shot off a platform (1) at 10 m/s. It hits a platform (2) and begins to roll without bouncing. The coefficient of friction between platform (2) and the ball is .3. How far does the ball land from platform (2)? How long does it take to hit the ground?
*November 13, 2010 by Jennifer*

**college physics**

a toy cannon fires a projectile from ground level with a speed of 15.0 m/s, at an angle of 30.0 degrees above the horizontal. a) calculate the horizontal range of projectile. R=Vi^2/g * sin 2theta = (150/9.8)*(sin(2*30.0) = 19.88m I know this part is right but i'm not sure ...
*October 3, 2012 by toor*

**geometry**

Points D, E, and F are the midpoints of sides \overline{BC}, \overline{CA}, and \overline{AB} of \triangle ABC, respectively, and \overline{CZ} is an altitude of the triangle. If \angle BAC = 71^\circ, \angle ABC = 39^\circ, and \angle BCA = 70^\circ, then what is \angle EZD+\...
*July 23, 2014 by kat*

**geometry**

Points D, E, and F are the midpoints of sides \overline{BC}, \overline{CA}, and \overline{AB} of \triangle ABC, respectively, and \overline{CZ} is an altitude of the triangle. If \angle BAC = 71^\circ, \angle ABC = 39^\circ, and \angle BCA = 70^\circ, then what is \angle EZD+\...
*July 23, 2014 by kat*

**history**

What was the point of the cannon attacks? Why is keeping the high ground important in a battle?
*May 20, 2009 by chris*

**physics**

A watermelon cannon fires a watermelon vertically up into the air at a velocity of + 9.50 m/s, starting from an initial position 1.20 meters above the ground. When the watermelon reaches the peak of its flight, what is the elapsed time in sec?
*September 18, 2012 by Lexxie*

**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**

A batted baseball leaves the bat at an angle of 26.0^\circ above the horizontal and is caught by an outfielder 355{\rm ft} from home plate at the same height from which it left the bat. What was the initial speed of the ball? How high does the ball rise above the point where ...
*January 26, 2013 by anonymous*

**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?
*December 15, 2010 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?
*December 15, 2010 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?
*December 15, 2010 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?
*December 16, 2010 by tammy mikols*

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