3. Harry Potter is doing his usual thing of cruising around looking for the Golden Snitch when a rogue bludger drills him in the arm. We can assume that the bludger is initially moving at a speed of 15.0 m/s and hits Harry directly from the side. If Harry had been moving forward with a speed of 24.0 m/s and the bludger and Harry stick together after the collision, what is their final velocity (both magnitude and direction)? Assume that Harry has a mass of 48.0 kg (including his Nimbus 2000) and that the mass of a bludger is 25.0 kg. m B = 25.0 kg B = 15.0 m/s Bam! Harry+Bludger v = ? Angle = ? 24.0 m/s HP 48.0 kg Harry HP 4. Gordon Sumner is playing billiards and hits the cue ball with a velocity of 3.50 m/s (white ball in figure, velocity vector shown in red). It strikes the at rest 8-ball (black ball in figure) and the cue ball is deflected at an angle of 40.0° relative to its initial direction and with a final speed of 2.68 m/s. If the collision is elastic, find the angle of the 8-ball after the collision and the speed of 8-ball after the collision. (You must show the equations and work used to arrive at this angle! You can be comforted knowing what it should be.) If you require it, the mass of each ball is 0.165 kg. A diagram is provided. v = 2.68 m/s v=3.50 m/s 40° V =
3. Harry Potter is doing his usual thing of cruising around looking for the Golden Snitch when a rogue bludger drills him in the arm. We can assume that the bludger is initially moving at a speed of 15.0 m/s and hits Harry directly from the side. If Harry had been moving forward with a speed of 24.0 m/s and the bludger and Harry stick together after the collision, what is their final velocity (both magnitude and direction)? Assume that Harry has a mass of 48.0 kg (including his Nimbus 2000) and that the mass of a bludger is 25.0 kg. m B = 25.0 kg B = 15.0 m/s Bam! Harry+Bludger v = ? Angle = ? 24.0 m/s HP 48.0 kg Harry HP 4. Gordon Sumner is playing billiards and hits the cue ball with a velocity of 3.50 m/s (white ball in figure, velocity vector shown in red). It strikes the at rest 8-ball (black ball in figure) and the cue ball is deflected at an angle of 40.0° relative to its initial direction and with a final speed of 2.68 m/s. If the collision is elastic, find the angle of the 8-ball after the collision and the speed of 8-ball after the collision. (You must show the equations and work used to arrive at this angle! You can be comforted knowing what it should be.) If you require it, the mass of each ball is 0.165 kg. A diagram is provided. v = 2.68 m/s v=3.50 m/s 40° V =
Physics for Scientists and Engineers: Foundations and Connections
1st Edition
ISBN:9781133939146
Author:Katz, Debora M.
Publisher:Katz, Debora M.
Chapter11: Collisions
Section: Chapter Questions
Problem 64PQ: From what might be a possible scene in the comic book The X-Men, the Juggernaut (mJ) is charging...
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