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23 Nov 2019
A force acting on a 1.8-kg particlein the xy plane atcoordinates (x, y) isgiven by vectorF=â(b/r^3)(xi + yj) where bis a positive constantand r is the distance from theorigin. (a) If b=3.2N X m^2 find the work done by this force astheparticle moves from (1.9 m, 0.0 m) to(5.6 m, 0.0 m) along astraight-line pathin J. (b) Find the work done by this force on a particle movingoncearound a circle of radius r = 7.4m that is centered atthe origin.
A force acting on a 1.8-kg particlein the xy plane atcoordinates (x, y) isgiven by vectorF=â(b/r^3)(xi + yj) where bis a positive constantand r is the distance from theorigin.
(a) If b=3.2N X m^2 find the work done by this force astheparticle moves from (1.9 m, 0.0 m) to(5.6 m, 0.0 m) along astraight-line pathin J.
(b) Find the work done by this force on a particle movingoncearound a circle of radius r = 7.4m that is centered atthe origin.
