physics
posted by Hannah .
n boat starts from rest and accelerates at a constant rate to a final speed of 28 m/s over a distance of 780 m. How much time will this take?

physics 
bobpursley
Vf^2=Vi^2+2ad
solve for a, then..
28=at solve for t. 
physics 
bobpursley
actually, there is an easier way. Avg velocity is 14m/s
time to travel= distance/avgvelocity
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