- #1

emily-

- 15

- 2

- Homework Statement
- The acceleration of the boat is defined by

a = (1.5 v^(1/2)) m/s. Determine its speed when t = 4 s if it has

a speed of 3 m/s when t = 0.

- Relevant Equations
- v = ds/dt

a = dv/dt

a ds = v dv

I have been trying to solve this problem for hours using the mentioned equations but no matter what I do I cannot get the correct answer, that is v = 22.4 m/s. I thought that maybe if I could get an expression where v is a function of time I could solve the problem but I don't know how to do that since they always end up being separate. Any help and guidance would be deeply appreciated, thanks!