190867 Mechanics and Thermodynamics Test 2 (chapters 7 12)

(a) At a certain instant, a particle-like object is acted on by a force F→=(4.0N)i^−(2.0N)j^+(9.0N)k^\vec{F} = (4.0\rm{N})\hat{i} - (2.0\rm{N})\hat{j} + (9.0\rm{N})\hat{k} while the objec...