4. 5. Determine the components of the force shown in the a and b directions. Also determine the a and b projections of the force. 1400 lb K 3000 N zo 30 b Using rectangular components determine the resultant vector of the three forces with P as an unknown magnitude. Determine P such that the resultant of the three forces has a magnitude of 2713.357 N knowing P is the smallest magnitude force. 800 N 90 10 P