Wehen Mr. Edgerton launches potatoes in his science class they record each launch. The videos are used to show that the velocity of the potatoes can be calculated using the distance each potato travels from one frame to the next, then dividing by the time each frame takes. The iPhone videos at 60 frames per second, so each frame takes .01666 seconds to elapse. All the videos show the potato traveling at 36.01 m/s or 80 mph. Next we use two meter sticks attached to a speed square to measure opposite and adjacent to calculate the launch angle of the potato. Combining the launch angle and velocity we can calculate how far the potato would go in a vacuum. The final calculation multiplies the vacuum distance times a drag coefficient to accurately estimate where the potato will land. Wind makes a big difference in how far the potato goes. An 8 mile per hour wind will change its flight distance by 30 meters. We were attempting to make the potato travel 100 m, measured by the start and finish on the track, but with a head wind the potato would come up 20 meters short and with a tail wind it would overshoot about 10 meters.
The Derry Area Trojans v. Valley Vikings varsity football game will be streamed LIVE by the Westmoreland Sports Network.
Kickoff is scheduled for 7 pm.
You can access the link at http://webca.st/173862 or by clicking on "Read Full Story" below.
This event STARTS at 7 pm and will provide viewers a walk through of how to access NKASD student email accounts, Microsoft Teams, and Skyward. It will include a demonstration of several features of Teams and how it will be used by NKASD faculty. Click on "Read Full Story" Below or use this link to the Event: https://bit.ly/32KS6AP
The attached file is the draft of the District's Phased School Reopening Health & Safety Plan as discussed at the Board Committee meeting at 6:30 PM on Wednesday, July 15, 2020 - Click on the "READ FULL ARTICLE" box below.