LN_Sec_12-6 - MOTION OF A PROJECTILE (Section 12.6) Todays...

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MOTION OF A PROJECTILE (Section 12.6) Today’s Objectives: Students will be able to analyze the free-flight motion of a projectile. In-Class Activities: Check homework, if any Reading quiz Applications Kinematic equations for projectile motion Concept quiz Group problem solving Attention quiz
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READING QUIZ 1. The downward acceleration of an object in free-flight motion is A) zero B) increasing with time C) 9 . 81 m/s 2 D) 9 . 81 ft/s 2 2. The horizontal component of velocity remains _________ during a free-flight motion. A) zero B) constant C) at 9 . 81 m/s 2 D) at 32 . 2 ft/s 2
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APPLICATIONS A kicker should know at what angle, θ , and initial velocity, v o, he must kick the ball to make a field goal. For a given kick “strength”, at what angle should the ball be kicked to get the maximum distance?
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APPLICATIONS (continued) A fireman wishes to know the maximum height on the wall he can project water from the hose. At what angle, θ , should he hold the hose?
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CONCEPT OF PROJECTILE MOTION Projectile motion can be treated as two rectilinear motions, one in the horizontal direction experiencing zero acceleration and the other in the vertical direction experiencing
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LN_Sec_12-6 - MOTION OF A PROJECTILE (Section 12.6) Todays...

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