A body of weight 10N attached to one end of s tring of length 1m is rotated in a vertical plane. At the instant when the string makes an angle of 60^(@) with the downward vertical, the speed of the bob is sqrt(9.8) ms^(-1). The tension in the string at that instant is equal to

A body of weight 10N attached to one end of s tring of length 1m is ro

1.	A body of weight 10N attached to one end of s tring of length 1m is rotated in a vertical plane. At the instant when the string makes an angle of 60^(@) with the downward vertical, the speed of the bob is sqrt(9.8) ms^(-1). The tension in the string at that instant is equal to
Answer» 10N 15N 20N 25N Answer :B