The sum of the forces in newtons exerted on the 360 kg sport plane (including its weight)...

The sum of the forces in newtons exerted on the 360 kg sport plane (including its weight) during an interval of lime is

(–1000 + 280t)i + (480 – 430t) j + (720 + 200t )k,

where t is the time in seconds. At t = 0, the velocity of the plane’s center of mass relative to the earth fixed reference frame is 20i + 35j – 20k (m/s). If you resolve the sum of the forces on the plane into components tangent and normal to the plane’s path at t = 2 s, what are the values of ∑Ft and ∑Fn?