For each of the following situations, write the specific values of the parameter

Question

For each of the following situations, write the specific values of the parameters ro(the initial position), o (the initial velocity), and a(the acceleration), appropriate for the given coor dinate system. Make sure to consider whether the term should be positive or negative to indicate its direction in the coordinate system. Make sure to include the correct units with each value. 1. A rock is dropped from the top of a 20 m tall building. Let the ground be 0, and up be the positive direction for the vertical axis of the coordinate system. TO 2. Another rock is thrown straight down from the top of a 20 mall building, at a speed of 5 m/s. Let the top of the building be 0, and down be the positive direction for the vertical axis of the coordinate system.

Explanation / Answer

Initial position

xo=20 m

Initial velocity vo=0

a=-g

(b) xo=20

vo=5 m/sec

v=u+at

a=-g

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