## A single constant force F = (3 i + 5 j) N acts on a 3.97 kg particle. (a) Calculate the work done by this force if the particle moves from the origin to the point having the vector position r = ( i – 2 j) m.(b) What is the speed of the particle at r if its speed at the origin is 4 m/s?(c) What is the change in the potential energy of the system?

A single constant force F = (3 i + 5 j) N acts on a 3.97 kg particle.(a) Calculate the work done by this force if the particle moves from the origin to the point having the vector position r = ( i – 2 j) m. (b) What is the speed of the particle …