An Introductory Projectile Motion Problem with an Initial Horizontal Velocity Part 1 of 2 (9:42)

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AP Physics 1

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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...

• Want to know how many attempts it really took to get the ball to land in the bucket?
  
• Want proof that "air resistance decreased the x displacement of the ball by less than 1 cm"?
  
• Cathy Colwell of PhysicsLAB.org created a lab based on this video, Video Lab: Two-Dimensional Projectile Motion, please enjoy!
  
• As legendas deste vídeo educacional de física foram traduzidas para português. Obrigado, João Veloso!
  

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