FA1 · Q1 · A.1 Kinematics · projectile motion, s = ut + ½at², constant velocity
Q1: a ball thrown horizontally
Velocity along the path, acceleration straight down, then the time in the air from the vertical motion only, and the initial speed from the sideways motion.
SL+HLMedium14 minFree
Hook
Students find this question harder than it looks, because it asks two different things at once. The trick is to split it: sideways is easy, downwards is where the equation of motion goes.
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The same ball is thrown twice as fast, still horizontally, from the same 2.4 m. The time it is in the air is…
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Which arrow is correct for the acceleration of the ball at P?