Could you help me to understand how to do 2a?

( 1 ) at rest ? at 8 seconds and 24-285. (11) slowing down? B-CE-F. J-K, (ili) speeding up? (-D, G-H, (1v) moving at constant speed? A - B, D-E, & H- J. (v) moving with the fastest speed? -E, & H-J. 2. A student throws a ball vertically upward from the edge of a cliff with a speed of 20 m/s. m tall. (a) How high does the ball go above the top of the cliff? (b) How much time elapses before the ball strikes the ground at the base of the cliff? (c) What is the speed of the ball just before it strikes the ground