The force in newtons exerted on the 360-kg sport plane in Problem 14.23 by its engine, the...

The force in newtons exerted on the 360-kg sport plane in Problem 14.23 by its engine, the lift force, and the drag force during an interval of time is

T + L + D = (–1000 + 280t)i + (4000 – 430t)j + (720 + 200t)k.

where t is the time in seconds, if the coordinates of die plane’s center of (pass are (0, 0, 0) and its velocity is 20i + 35j – 20k (m/s) at t = 0. what are the coordinates of the center of mass at t = 4 s?