Compléter Vertical Projectile Motion Version en ligne Fill in the blanks with what you know about vertical projectile motion. par Devon Heath 1 zero up slow speed down zero second 10 Objects that move up and down ( vertical projectiles ) on the Earth accelerate with a constant acceleration of roughly negative m / s / s . That means that the vertical velocity will change by roughly 10 m / s each . If an object is dropped , its initial vertical velocity is m / s . If the object is travelling upward the vertical displacement ( y ) would be positive . If the object is travelling downward the vertical displacement ( y ) would be negative . If the object is travelling upward , its vertical velocity value will disagree with the vertical acceleration , meaning the object will . If the object is travelling downward , its vertical velocity value will agree with the vertical acceleration , meaning the object will . If an object is thrown upwards and returns to the paint from which it was thrown , the vertical displacement ( y ) will be meters .
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