Koversikan kedalam satuan rad/s a.140 rpm b.60 rpm

140 rpm = 140 / 60 = 2,33 rps ( route / second ) = 2,33 x 2π rad / s = 4,66 π rad/s
60 rpm = 60 / 60 = 1 rps = 1 x 2π rad/s = 2 π rad/s