Physics

A sailboat starts from rest and accelerates at a rate of 0.12 m/s 2 over a distance of 280 m.

(a) Find the magnitude of the boat's final velocity. m/s
(b) Find the time it takes the boat to travel this distance.

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  1. v=sqrt(2as) = sqrt(2•0.12•280)=8.2 m/s.
    s=at²/2,
    t=sqrt{2s/a}=sqrt(2•280/0.12) = 68.3 s.

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