A body of mass 1.86 kg is attached to one end of a wire and rotated in a horizontal circle of diameter 65 cm with a constant speed of 3.5 m/s. What is the area of cro
a) ( π × (0.325)² ) m²
b) ( π × (0.65)² ) m²
c) ( π × (0.325) ) m²
d) ( π × (0.65) ) m²
