8. The tolerance is -+1 in the 3rd significant digit

A force F = (6.60 N ) i + (3.80 N ) j + (2.40 N ) k acts on a 4.80 kg mobile object that moves from an initial position of d; = (2.80 m ) i + (4.10 m ) j + (2.70 m ) k to a final position of d f = (2.60 m ) i + (1.90 m ) j + (3.60 m ) k in 4.10 s. Find (a) the work done on the object by the force in the 4.10 s interval, (b) the average power due to the force during that interval, and (c) the angle between vectors d ; and d f. (a) Number Units (b) Number i Units (c) Number i Units