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Showing results for tags 'initial'.
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Name: Nerd-A-Pult - Measuring Initial Velocity Category: Kinematics Date Added: 27 May 2014 - 09:29 PM Submitter: Flipping Physics Short Description: None Provided We need to know the initial velocity of a projectile leaving the Nerd-A-Pult. That means we need the initial speed and the initial angle. This video shows exactly how I measured both. Content Times: 0:30 Taking measurements to determine the launch angle 1:20 Finding a triangle 2:02 Defining the angles 3:35 Determining the launch angle 4:38 Using the frame rate to find the change in time 5:08 Measuring the distance travelled during the first frame 6:12 Why initial speed and not initial velocity? 6:39 Determining the average launch speed View Video
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Name: (Part 1 of 2) An Introductory Projectile Motion Problem with an Initial Horizontal Velocity Category: Kinematics Date Added: 22 May 2014 - 04:49 PM Submitter: Flipping Physics Short Description: None Provided Can you drop a ball from a moving vehicle and get it to land in a bucket? You can using Physics! In this video we solve an introductory projectile motion problem involving an initial horizontal velocity and predict how far in front of the bucket to drop the ball. Content Times: 0:17 Reading the problem. 0:41 Visualizing the problem. 1:18 Translating the problem. 2:31 Converting from miles per hour to meters per second. 3:10 Two common mistakes about projectile motion givens. 4:29 Beginning to solve the problem. 5:13 Solving for the change in time in the y-direction. 6:22 Solving for the displacement in the x-direction. 7:29 Video proof that it works. 8:14 Air resistance? 9:09 In our next lesson... View Video
