Download Cracking the AP Physics B Exam, 2014 Edition by Princeton Review PDF
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THE PRINCETON evaluation will get RESULTS. Get the entire prep you must ace the AP Physics B examination with 2 full-length perform checks, thorough subject stories, and confirmed concepts that can assist you ranking higher.
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• 2 full-length perform tests with special reasons
• professional topic experiences for all try out topics
• perform drills on the finish of every content material evaluate chapter
• step by step options & thoughts for each component to the exam
• sensible information regarding what to anticipate at the AP Physics B examination
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Extra info for Cracking the AP Physics B Exam, 2014 Edition
They work in cases where acceleration is uniform, which are the cases we’re considering. Each of the Big Five equations is missing one of the five kinematic quantities. The way you decide which equation to use when solving a problem is to determine which of the kinematic quantities is missing from the problem—that is, which quantity is neither given nor asked for—and then use the equation that doesn’t contain that variable. For example, if the problem never mentions the final velocity—v is neither given nor asked for—the equation that will work is the one that’s missing v.
Solution. When the projectile reaches the top of its trajectory, its velocity vector is momentarily horizontal; that is, vy = 0. 25 An object is projected upward with a 30° launch angle from the ground and an initial speed of 60 m/s. For how many seconds will it be in the air? How far will it travel horizontally? Assume it returns to its original height. Solution. The total time the object spends in the air is equal to twice the time required to reach the top of the trajectory (because the parabola is symmetrical).
Either of the following two graphs represents an object speeding up in the positive direction. Either of the following two graphs represents an object slowing down in the positive direction. Either of the following two graphs represents an object slowing down in the negative direction. Either of the following two graphs represents an object speeding up in the negative direction. -time graph. -time graph. Solution. 16 The velocity of an object as a function of time is given by the following graph: At which point (A, B, C, D, or E) is the magnitude of the acceleration the greatest?