A particle moves according to a law of motion s = f (t), t > 0, where

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A particle moves according to a law of motion s = f (t), t > 0, where t is measured in seconds and s in feet.

(a) Find the velocity at time t.

(b) What is the velocity after 1 second?

(c) When is the particle at rest?

(d) When is the particle moving in the positive direction?

(e) Find the total distance traveled during the first 6 seconds.

(f) Draw a diagram like Figure 2 to illustrate the motion of the particle.

(g) Find the acceleration at time t and after 1 second.

(h) Graph the position, velocity, and acceleration functions for 0 < t < 6.

(i) When is the particle speeding up? When is it slowing down?

f (t) = t2e-t

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