Questions 35 and 36. The graph shows the velocity of an object during the interval 0 ≤ t ≤ 9.
- The object attains its greatest speed at t =
(A) 2 sec
(B) 3 sec
(C) 5 sec
(D) 6 sec
(E) 8 sec - The object was at the origin at t = 3. It returned to the origin
(A) at t = 5 sec
(B) at t = 6 sec
(C) during 6 < t < 7 sec
(D) at t = 7 sec
(E) during 7 < t < 8 sec - An object in motion in the plane has acceleration vector for 0 t 5. It is at rest
when t = 0. What is the maximum speed it attains?
(A) 1.022
(B) 1.414
(C) 2.217
(D) 2.958
(E) 3.162 - If is replaced by u, then is equivalent to
(A)