Discussion-05 - 2D 2DKinematics ProjectileMotion...

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D Kinematics rojectile Motion 2D Kinematics – Projectile Motion Discussion #05 – Ch. 3.1 – 3.3 Physics 125–Fall 2010 Dr. Mike Melnichuk mmeln@umich.edu Office: 2409 Randall Lab phys125lecture@umich.edu ffice Hours: 2:00 :00 / Mon & Tue Rm 1416 Randall Lab Office Hours: 2:00 – 4:00 / Mon. & Tue. in Rm. 1416 Randall Lab.
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Example #1 A battle ship simultaneously fires two shells at enemy ships. If the shells follow the parabolic trajectories shown, which ship gets hit first? 0y v Ht d t A) Ship A. B) Ship B. y top half-way 0y half-way top 2 top half-way half-way H = t and v = gt 2 H g H = t and t 2 g = C) They will both be hit at the same time. D) Need more information. py y top total half-way 2g H t 2t 2 2 == g A B
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Example #2 A motorcycle stunt rider rides off the edge of a cliff. Just at the edge his velocity is horizontal, with magnitude 9.0 m/s. What is the motorcycle’s distance from the rigin at t = 0.50 s ? origin at t 0.50 s ? A) 1.8 m B) 6.4 m C) 7.2 m D) 3.8 m E) 4.7 m
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Test #1 A motorcycle stunt rider rides off the edge of a cliff. Just at the edge his velocity is horizontal, with magnitude 9.0 m/s. What is the magnitude of the velocity and its irection relative to the x- xis at t = 0.50 s ?
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Discussion-05 - 2D 2DKinematics ProjectileMotion...

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