Keeping your sign conventions for direction is very important.all velocity directed down must benegative, and all velocity directed up must be positive.2. A college student drops his textbook out a second story window in the Oswald Building, which is12m above the ground.a)What is the velocity of the book just before it hits the ground?b)5m/s, what would the velocity of the book be just before it hit the ground?If the student had instead thrown the book upward with an initial velocity of

Solution: We know that, From the Law of Kinematics: v2=u2+2as Where, v=final velocity…

Answered: Keeping your sign conventions for…

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