Posted by **Hannah ** on Monday, February 6, 2012 at 6:32pm.

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**, Monday, February 6, 2012 at 7:33pm
Vf^2=Vi^2+2ad

solve for a, then..

28=at solve for t.

- physics -
**bobpursley**, Monday, February 6, 2012 at 7:34pm
actually, there is an easier way. Avg velocity is 14m/s

time to travel= distance/avgvelocity

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