Question 58 of 195

Certain neutron stars are believed to be rotating at about 1 rev/sec. If such a star has a radius of 20 km, the acceleration of an object on the equator of the star will be 

(1) $20\times {10}^{8}m/{\sec }^2$

(2) $8\times {10}^{5}m/{\sec }^2$

(3) $120\times {10}^{5}m/{\sec }^2$

(4) $4\times {10}^{8}m/{\sec }^2$