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 Homework Statement:
 What are the values of the intial velocity vector components v0,x and v0,y (both in m/s) as well as the acceleration vector components a0,x and a0,y (both in m/s2)? Here the subscript 0 means "at time t0."
 Relevant Equations:

v0x = vocos(angle)
V0y= vosin(angle)
Taking upward direction as positive why will the acceleration be 9.8? Is it due to the curve of the graph?