2D Kinematics Problems | AP Physics 1 скачать в хорошем качестве

2D Kinematics Problems | AP Physics 1

Hi everyone, I seem to have made a mistake at 4:32 and 6:49 regarding the units for acceleration. It should be m/s^2. Apologies for the confusion. Please feel free to comment any questions about the video or any problems you have encountered in class that you would like me to cover in a video. Here are the problems from the video if you would like to try them for yourselves: 0:00 Problem 1 - Cannonball 3:53 Problem 2 - Labeled Trajectory 6:00 Problem 3 - Waterfall 1. A cannonball is fired from ground level at a speed of 90 m/s at an angle of 40° above the horizontal. It eventually hits a vertical wall located 300 meters away. A. How long is the cannonball in the air before hitting the wall? B. How high above the ground does the cannonball strike the wall? 2. Given the trajectory below: A. At which point(s) is the projectile’s speed the greatest? B. At which point(s) is the speed the smallest? C. Is the acceleration the same at all points on the path? Explain. 3. Water flows horizontally off the edge of a cliff at a speed of 15 m/s, falling from a height of 200 meters into a river below. A. What is the speed of the water when it hits the river? B. At what angle does the water strike the river surface? Thank you for watching!