A plane designed for vertical takeoff has a mass of 8.1 ✕ 103 kg.

Question

Find the net work done by all forces on the plane as it accelerates upward at 11.5 m/s2 through a distance of 28.8 m after starting from rest.

Answer 1

∑F_y = F_net = ma

F_net = (8.1 x 10³)(11.5)

F_net = 93150 N

W = F_net(d_y) = (93150)(28.8) = 2682720 Nm = 2.7 x 10⁶ Nm