Ablock slides across a frictionless horizontal surface with constant acceleration 4.15 m/s2 and over a time interval reaches a final velocity of 12.2 m/s.
(a) if its initial velocity is 6.10 m/s, what is its displacement (in m) during the time interval? (indicate the direction with the sign of your answer.) m
(b) what is the distance it travels (in m) during this interval? m
(c) if its initial velocity is −6.10 m/s, what is its displacement (in m) during the time interval? (indicate the direction with the sign of your answer.) m
(d) what is the total distance it travels (in m) during the interval in part (c)?