(Solved): force F=(4i^3j^)N acts on a particle that undergoes a displacement r=(2i^+j^)m. (a) Find ...

force $$\overrightarrow{\mathbf{F}}=(4\hat{\mathbf{i}}?3\hat{\mathbf{j}})\mathrm{N}$$ acts on a particle that undergoes a displacement $$?\overrightarrow{\mathbf{r}}=(2\hat{\mathbf{i}}+\hat{\mathbf{j}})\mathrm{m}$$. (a) Find the work done by the force on the particle. ? Your response differs from the correct answer by more than $$10\%$$. Double check your calculations. J (b) What is the angle between $$\overrightarrow{\mathrm{F}}$$ and $$?\overrightarrow{\mathrm{r}}$$ ? ? Your response differs significantly from the correct answer. Rework your solution from the beginning and check eac step carefully.