Asked by mike
A sailboat starts from rest and accelerates at a rate of 0.12 m/s2 over a distance of 280 m.
(a) Find the magnitude of the boat's final velocity.
(b) Find the time it takes the boat to travel this distance.
(a) Find the magnitude of the boat's final velocity.
(b) Find the time it takes the boat to travel this distance.
Answers
Answered by
Elena
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.
s=at²/2,
t=sqrt{2s/a}=sqrt(2•280/0.12) = 68.3 s.