Question: If a ball is given a push so that it has an initial velocity of 5 m/s down a certain inclined plane, then the distance

If a ball is given a push so that it has an initial velocity of 5 m/s down a certain inclined plane, then the distance it has rolled after seconds is s = 5t + 3t2.
(a) Find the velocity after 2 s.
(b) How long does it take for the velocity to reach 35 m/s?

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