An object is moving at a constant rate of 30 rpm (revolutions per minute) along a horizontal circular path of radius 1 m. The object has a radial acceleration of 4 712 and a period of 0.5 s a radial acceleration of 72 and a period of 2 s O a radial acceleration of 72 and a period of 60 s a radial acceleration of 712 and a period of 0.5 s O a radial acceleration of 4 712 and a period of 60 s