physics ..PLEASE HELP ASSIGN DUE SOON :(
posted by joane .
A speedboat starts from rest and accelerates at +1.90m/s^2 for 7.00 s. At the end of this time, the boat continues for an additional 6.00 s with an acceleration of +0.529m/s^2. Following this, the boat accelerates at -1.47m/s^2 for 8.00 s.
**What is the total displacement of the boat?
break this into three parts, figure the final velocity, and displacement for each.
A. vf=at=you figure
da=1/2 a t^2 + Vi*t
B. Vi=vf from above.
db=viIt + 1/2 a t^2
C do the same.
add the three displacements, da, db, dc