4-26. A two-link planar robot is shown in Fig: P4.26. (a) Calculate the position of the tip P of the planar robot using vector addition (use the i and j notation): Determine the magnitude and direction of the position of the robot tip. In other words, write vector P in the polar form. (c) Repeat part (b) using the laws of sines and cosines.
Pz
P
120°
Figure P4.26 P4-26_
two-link robot located for problem