Homework Help: physics

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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