A 3.8 kg block is on a 30 degree incline for which fricition is 3N. it is acted on by a horizontal force of 21 N, as shown in the above figure. a] What is the acceelreation of the block if it is moving up the incline? (enter a positive value if the acceleration is directed up the incline, enter a negative value if the acceleration is directed down the incline} || fit/52 b} If its initial speed is 10 m/s up the incline, how far does it travel in 2 s? llm