A body of mass of 100 g is attached to a 1m long string and it is revolving in a vertical circle. When the string makes an angle of 60° with the vertical then its speed is 2m/s . The tension in the string at θ = 60° will be
(a) 89 N
(b) 0. 89 N
(c) 9.8 N
(d) 0. 089 N
