A body of mass 1 kg begins to move under the action of a time dependent force vector F = (2t i + 3t2 j)N,where vector i and j are unit vectors along x and y axis. What power will be developed by the force at the time t?
(a) (2t3 + 3t4) W
(b) (2t3 + 3t5) w
(c) (2t2 + 3t3) W
(d) (2t2 + 4t4) W
