2 Below is an object's position versus time graph. When is the object's velocity equal zero? 3.5 2.5 N position, x(m) 1.5 0.5 O 0 2 4 6 8 10 time, t(s) O Between 6s to 9s Between 4s to 10s O Between Os to 4s O Between 4s to 6s3 Below is an object's velocity versus time graph. When is the object's velocity constant? 3.5 W 2.5 velocity, v(m/s) i N 0.5 0 0 1 2 3 4 5 6 7 8 9 10 time, t(s) O 6s 9s and 4s