i only need d and e

1. [3/5 Points] DETAILS PREVIOUS ANSWERS SCALCET9 3.7.001. A graphing calculator is recommended. A particle moves according to a law of motion s = f(t), t 2 0, where t is measured in seconds and s in feet. (If an answer does not exist, enter DNE.) At) = 13 - 912 + 24t (a) Find the velocity (in ft/s) at time t. v(t) = 312- 18t + 24 ft/s (b) What is the velocity (in ft/s) after 1 second? v(1) = 9 ft/s (c) When is the particle at rest? (Enter your answers as a comma-separated list.) t = 4.2 (d) When is the particle moving in the positive direction? (Enter your answer using interval notation.) 1> 0 X (e) Draw a diagram to illustrate the motion of the particle and use it to find the total distance (in ft) traveled during the first 6 seconds. 36 x ft (f) Find the acceleration (in ft/s2) at time t