Asked by klew
A speedboat increases its speed uniformly from v1 = 20 m/s to vf = 26 m/s in a distance of 1.60 102 m.
Substitute given values, obtaining the acceleration.
Find the time it takes the boat to travel the given distance.
Substitute given values, obtaining the acceleration.
Find the time it takes the boat to travel the given distance.
Answers
Answered by
Henry
Vf^2 = Vo + 2ad,
a = (Vf^2 - Vo^2) / 2d,
a = ((26)^2 - (24)^2) / 320 = 0.8625.
Vf = Vo + at,
t = (Vf - Vo) / a,
t = (26 - 20) / 0.6625 = 6.96s.
a = (Vf^2 - Vo^2) / 2d,
a = ((26)^2 - (24)^2) / 320 = 0.8625.
Vf = Vo + at,
t = (Vf - Vo) / a,
t = (26 - 20) / 0.6625 = 6.96s.
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