What are the solutions in detail for this question?

Question 2: The position of a particle moving on a line is given by: s(t) = 3t3 - 4t2 + 30t, where's is the displacement in metres and t is the time in seconds. a) What is the velocity of the particle at 3 seconds? b) What is the acceleration of the particle at 3 seconds? c) When is the object at rest? d) When is the object moving to the right? To the left? e) When is the velocity of the object increasing? Decreasing