# WanidaK's Blog

• entries
3
4
• views
833

## Video: Test Trial of Catapult

In this video my group and I were test trying out our catapult at an approximate angle of 45 degrees which we hoped would of increased our distance. Projectile displacement is also present in this video, but also the force of gravity which then brings down the softball.

## Dropping my iPhone

I am usually really careful when it comes to my phone, but accidents do happen and I dropped my phone on the cement ground. Since my phone dropped at free fall which means my phone was falling through the sole influence of gravity, it was accelerating vertically at 9.81 m/s^2 but with a initial velocity of zero. This is to say that my phone at free falling is changing by 9.81 m/s every second, but luckily enough my phone did not hit the ground hard enough to crack my screen. Also since my phone

## Building a catapult

For physics we were given an assignment to build a catapult. In order to build a successful catapult we needed to take into account the angle of the arm of the catapult that was approximately measured at 45Â°. At 45Â°, where the arm of the catapult was suppose to be angled, when launched was suppose to give us the tallest possible height. Considering we were off on our measurements we were only able to get the softball at a constant distance of 8m. Lifting the catapult itself required force beca

The pages of APlusPhysics.com, Physics in Action podcasts, and other online media at this site are made available as a service to physics students, instructors, and others. Their use is encouraged and is free of charge. Teachers who wish to use materials either in a classroom demonstration format or as part of an interactive activity/lesson are granted permission (and encouraged) to do so. Linking to information on this site is allowed and encouraged, but content from APlusPhysics may not be made available elsewhere on the Internet without the author's written permission.

APlusPhysics.com, Silly Beagle Productions and Physics In Action materials are copyright protected and the author restricts their use to online usage through a live internet connection. Any downloading of files to other storage devices (hard drives, web servers, school servers, CDs, etc.) with the exception of Physics In Action podcast episodes is prohibited. The use of images, text and animations in other projects (including non-profit endeavors) is also prohibited. Requests for permission to use such material on other projects may be submitted in writing to info@aplusphysics.com. Licensing of the content of APlusPhysics.com for other uses may be considered in the future.

#### APlusPhysics Books

×
×
• Create New...