16. In unit-vector notation, what is the net torque about the origin on a flea located at coordinates (0, -4.0 m, 5.0 m) when forces F= the flea? (3.0 N)k and F=(-2.0 N)ĵ act on %3D

7. What is the torque about the origin of the force (-7.0î – 3.0j + 1.0k) N if it is applied at the point whose position is: ř = (2.0î+6.0j) m?

1. What is the magnitude of the torque about the origin of the force (-3i+3j+5k) N if it is applied at the point whose position vector is T = (-2î + 4j) m. |7| = V Nm

Topic 2 –       Summation of Forces Forces are given; Force 1 = 12 N @ 1100 Force 2 =  15 N @2600 Force 3 = 5 i – 6 j N 1.     Find the resultant force if they are all added? 2.     What are the magnitude and angular direction of the sum of the vectors?  3.  F1 o F2=_______________  (Dot Product) 4.  F1 x F3 = ________________  (Cross Product)