https://padlet.com/113133/dbdvprg4hhyd Calculations for Catapult en-us 2018-11-02 00:46:39 UTC 2025-11-24 23:48:46 UTC hello@padlet.com https://padlet-assets.s3.amazonaws.com/icons/Terminator.png 113133 https://padlet.com/113133/dbdvprg4hhyd/wish/299636961 By Joe ]]> 2018-11-02 00:49:41 UTC https://padlet.com/113133/dbdvprg4hhyd/wish/299636961 113133 https://padlet.com/113133/dbdvprg4hhyd/wish/299637384 2018-11-02 00:52:12 UTC https://padlet.com/113133/dbdvprg4hhyd/wish/299637384 113133 https://padlet.com/113133/dbdvprg4hhyd/wish/299637406 2018-11-02 00:52:21 UTC https://padlet.com/113133/dbdvprg4hhyd/wish/299637406 113133 https://padlet.com/113133/dbdvprg4hhyd/wish/299637673 Velocity=3.31m/s]]> 2018-11-02 00:54:09 UTC https://padlet.com/113133/dbdvprg4hhyd/wish/299637673 113133 https://padlet.com/113133/dbdvprg4hhyd/wish/299638083 .50 seconds ]]> 2018-11-02 00:56:18 UTC https://padlet.com/113133/dbdvprg4hhyd/wish/299638083 113133 https://padlet.com/113133/dbdvprg4hhyd/wish/299638165 1.23 meters]]> 2018-11-02 00:56:45 UTC https://padlet.com/113133/dbdvprg4hhyd/wish/299638165 113133 https://padlet.com/113133/dbdvprg4hhyd/wish/299638332 4.91 m/s]]> 2018-11-02 00:57:41 UTC https://padlet.com/113133/dbdvprg4hhyd/wish/299638332 113133 https://padlet.com/113133/dbdvprg4hhyd/wish/299638722 5.92 m/s]]> 2018-11-02 00:59:43 UTC https://padlet.com/113133/dbdvprg4hhyd/wish/299638722 113133 https://padlet.com/113133/dbdvprg4hhyd/wish/299742959 Popsicle sticks
tape
glue
spoon
rubber bands
cardboard
string/yarn
clothespin 


]]> 2018-11-02 12:35:07 UTC https://padlet.com/113133/dbdvprg4hhyd/wish/299742959 113133 https://padlet.com/113133/dbdvprg4hhyd/wish/300010821 Height= 19 cm
Length= 29 cm
Width= 30 cm]]> 2018-11-02 23:02:13 UTC https://padlet.com/113133/dbdvprg4hhyd/wish/300010821 113133 https://padlet.com/113133/dbdvprg4hhyd/wish/300012562 2018-11-02 23:25:35 UTC https://padlet.com/113133/dbdvprg4hhyd/wish/300012562 113133 https://padlet.com/113133/dbdvprg4hhyd/wish/300012682 The ballista catapult is a medieval machine that was used to hurl rocks and other missiles far distances in a crossbow like fashion. It was very easy to use and portable but the catapult was meant for throwing arrow type projectiles, not rocks. So the rocks or boulders did not fly as far as arrows.]]> 2018-11-02 23:26:59 UTC https://padlet.com/113133/dbdvprg4hhyd/wish/300012682 113133 https://padlet.com/113133/dbdvprg4hhyd/wish/300012987 Ballista]]> 2018-11-02 23:30:54 UTC https://padlet.com/113133/dbdvprg4hhyd/wish/300012987 113133 https://padlet.com/113133/dbdvprg4hhyd/wish/300013094 Mangonel]]> 2018-11-02 23:32:05 UTC https://padlet.com/113133/dbdvprg4hhyd/wish/300013094 113133 https://padlet.com/113133/dbdvprg4hhyd/wish/300013177 Trebuchet]]> 2018-11-02 23:32:54 UTC https://padlet.com/113133/dbdvprg4hhyd/wish/300013177 113133 https://padlet.com/113133/dbdvprg4hhyd/wish/300013356 The mangonel is a one armed catapult with a wooden or metal bowl on the end that is used to launch the catapult. Although it was a very sturdy catapult and was easy to roll into battle, it was inaccurate and its range was short.]]> 2018-11-02 23:35:03 UTC https://padlet.com/113133/dbdvprg4hhyd/wish/300013356 113133 https://padlet.com/113133/dbdvprg4hhyd/wish/300013625 The trebuchet was an ancient Chinese war machine that was used for slinging rocks over walls and trenches. Heavy counterweights were used to sling the payload hundreds of yards. It can throw heavier stones farther than the mangonel and the ballista, but due to its large size and many moving and operating parts. It was difficult to set up and launch fast.]]> 2018-11-02 23:38:26 UTC https://padlet.com/113133/dbdvprg4hhyd/wish/300013625 113133 https://padlet.com/113133/dbdvprg4hhyd/wish/300014098 Google Search, Google, www.google.com/search?q=mangonel%2Bcatapult&safe=active&rlz=1C5CHFA_enUS772US772&source=lnms&tbm=isch&sa=X&ved=0ahUKEwiYpIHD8bbeAhVFxoMKHVY2ArQQ_AUIEygB&biw=1439&bih=726#imgrc=lnVkoTOp_Pg8hM:

https://www.google.com/search?safe=active&rlz=1C5CHFA_enUS772US772&biw=1439&bih=726&tbm=isch&sa=1&ei=BOHcW-C4GunojwSmxp-YDQ&q=trebuchet+catapult&oq=trcatapult&gs_l=img.1.1.0i7i30l10.127394.128645..129597...1.0..0.72.268.4......1....1..gws-wiz-img.......0j0i67j0i8i7i30.qdKRuUiDaqI#imgrc=ockd0DKVkREenM:

Google Search, Google, www.google.com/search?safe=active&rlz=1C5CHFA_enUS772US772&biw=1439&bih=726&tbm=isch&sa=1&ei=huHcW-3MPJCvjwSc7qnQAw&q=ballista%2Bcatapult&oq=ba&gs_l=img.1.0.35i39l2j0i67l3j0j0i67j0j0i67j0.50255.50407..51758...0.0..0.62.117.2......1....1..gws-wiz-img.m4bIbt6Zp2Q#imgrc=Y3gudvM98KxPnM:]]> 2018-11-02 23:45:01 UTC https://padlet.com/113133/dbdvprg4hhyd/wish/300014098 113133 https://padlet.com/113133/dbdvprg4hhyd/wish/300014276 The clothespin located towards the rear of the contraption was opened and the tip of the spoon was inserted inside the clip, thus expanding the rubber bands. The clip was pushed down, releasing the spoon and the rubber bands contracted. Hurling the ball towards our target.]]> 2018-11-02 23:47:47 UTC https://padlet.com/113133/dbdvprg4hhyd/wish/300014276 113133 https://padlet.com/113133/dbdvprg4hhyd/wish/300015100 1. We could have made a stronger base for the spoon and arm to sit on, it often bended a fraction of a centimeter while arming the spoon but it hurt us.
2. We could have secured the rubber bands that propel the spoon forward when we released the clip. Every once in a while they would slide down the Popsicle stick and loosening. We would have to readjust them and make them tighter.
3. I feel like when it comes to the amount of contributing parts, we could have added some more objects to help with the performance of the project.]]> 2018-11-03 00:02:07 UTC https://padlet.com/113133/dbdvprg4hhyd/wish/300015100 113133 https://padlet.com/113133/dbdvprg4hhyd/wish/300015554 2018-11-03 00:10:43 UTC https://padlet.com/113133/dbdvprg4hhyd/wish/300015554