Dynamics_Hibbeler_CH12_10 - RELATIVE-MOTION ANALYSIS OF TWO...

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RELATIVE-MOTION ANALYSIS OF TWO PARTICLES USING TRANSLATING AXES Today’s Objectives: Students will be able to: 1. Understand translating frames of reference. 2. Use translating frames of reference to analyze relative motion. In-Class Activities: Check Homework, Reading Quiz Applications Relative Position, Velocity and Acceleration Concept Quiz Group Problem Solving Attention Quiz
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READING QUIZ 1. The velocity of B relative to A is defined as A) v B v A . B) v A v B . C) v B + v A . D) v A + v B . 2. Since two dimensional vector addition forms a triangle, there can be at most _________ unknowns (either magnitudes and/or directions of the vectors). A) one B) two C) three D) four
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APPLICATIONS Here, the boy on the ground is at d = 10 ft when the girl in the window throws the ball to him. If the boy on the ground is running at a constant speed of 4 ft/ s, how fast should the ball be thrown? When you try to hit a moving object, the position, velocity, and acceleration of the object all have to be accounted for by your mind. You are smarter than you thought!
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APPLICATIONS (continued) If the aircraft carrier is underway with a forward velocity of 50 km/hr and plane A takes off at a horizontal air speed of 200 km/hr (measured by someone on the water), how do we find the velocity of the plane relative to the carrier? How would you find the same thing for airplane B?
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Dynamics_Hibbeler_CH12_10 - RELATIVE-MOTION ANALYSIS OF TWO...

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