: AB P5 K 10. A particle is moving along a line according to the equation of motion, where (t) is position in feet and t is the time in seconds. +241 +2,0 ≤ ≤7 s(t)=-9² (a) Find the velocity and acceleration functions. In what time interval(s) is the particle (b) moving to the right. (e) moving to the left, (d) speeding up, and (e) slowing down?