A ship has a light displacement of 2050 tons (KG = 3.6 m). She loads 2600 tons of cargo (KG= 5 m) and 300 tons of bunkers (KG= 3 m). The GM is then found to be 0.15 m. Find the GM with the bunkers empty.

Aparticle's position is given by x = 3.00 - 9.00t + 3t2, in which x is in meters and t is in seconds. (a) what is its velocity at t = 1 s? (b) is it moving in the positive or negative direction of x just then? (c) what is its speed just then? (d) is the speed increasing or decreasing just then? (try answering the next two questions without further calculation.) (e) is there ever an instant when the velocity is zero? if so, give the time t; if not, answer "0". (f) is there a time after t = 3 s when the particle is moving in the negative direction of x? if so, give the time t; if not, answer "0".