A circular disc is rotating with a varying speed u =(2t-4) m/s, where t is in second. An object is placed in the disc. The pseudo fore on the object is

Total acceleration of the disc aT2+aR2 and pseudo force depends on net acceleration.aT=2 m/s2aR=u2/R        at       t =2sec                                                                                                                  u=0                                                                                                                  aR=0