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

What work is done by a force F = (7.00 x N )i + (7.00 N ) j, with x in meters, that moves a particle from a position ri = (4.00 m )i + (7.00 m ) j to a position 7 f = - (6.00 m )i - (8.00 m ) ;? Number i UnitsA can of sardines is made to move along an x axis from x = 0.49 m to x = 1.25 m by a force with a magnitude given by F = exp(-7x), with x in meters and F in newtons. (Here exp is the exponential function.) How much work is done on the can by the force? Number i Units