AAI ATC Junior Executive 27 Dec 2023 Shift 1 Paper

A point mass has a velocity v = (1.0 m/s) i + (3.0 m/s)j, at a certain instant. At the same instant, it experiences a force F = -(2.0 N) i + (4.0 N) j + (5.0 N) k. i, j and k are unit vectors along x - y -, and z - axis, respectively. The power delivered by the force, at that instant is: