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What will be its instantaneous velocity?

A row boat, starting from rest, takes 10 seconds to travel 28 meters. If the boat maintains a uniform acceleration, what will be its instantaneous velocity at the end of the 10 second period?

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Robert J. | Certified High School AP Calculus and Physics TeacherCertified High School AP Calculus and Ph...
4.6 4.6 (13 lesson ratings) (13)
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Check Marked as Best Answer
d = (1/2)at^2
28 = (1/2)a(10^2)
Solve for a,
a = .56 m/sec^2
 
v = at = .56*10 = 5.6 m/sec
 
 
Brad M. | STEM Specialist plus Business, Accounting, Investment & EditingSTEM Specialist plus Business, Accountin...
4.9 4.9 (229 lesson ratings) (229)
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Sun -- "physical" approach ... ave speed is 2.8m/s ... since Vo is zero, Vf must be twice or 5.6 m/s :)