Queens Assemblywoman Vivian Cook is a corrupt racist who tossed around the N-word, degraded a biracial employee and hired her own grandson for a low-show job, an explosive lawsuit charges. Ex-legislative aide Gail Palmer alleges that the ethically challenged and often-angry lawmaker would smash things on the floor while “frequently cursing at and excoriating” terrified staffers, who kept silent because they needed their jobs. The 80-year-old Democrat often called her half a dozen employees “motherf- -kers” and would make bizarre racial proclamations including, “I’m feeling colored today,” or “I’m feeling n- - -erish,” according to court papers.