chp3 problem30

Physics: Principles with Applications

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Chapter 3, Problem 30 Question Problem (a) Consider the vertical component of the motion of the projectile. Resolve the initial velocity into its components along the and directions. The equation connecting the vertical displacement , the vertical velocity , the component of initial velocity , the acceleration due to gravity , and the time is . Re-arrange Put , , and solve for . Thus, the projectile will reach a maximum height of from the ground. (b) Consider the vertical component of the motion of the projectile. The equation connecting the vertical displacement at time , the vertical displacement at time , the component of initial velocity , the acceleration due to gravity and the time is . Put , , , and . Re-arrange and factorize. Solve for . (1 of 3) [2/4/2008 3:57:35 PM]
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Thus, the projectile remained in the air for . The time
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