A 200 gram mass is attached to a 120 cm long string as shown

A 20.0 gram mass is attached to a 120 cm long string as shown in the figure. The tension in the string is measured to be 0.200 N. What is the angle alpha? 11.2 degree 13.6 degree 3. 18.7 degree 22.4 degree 24.6 degree

Mass, m = 20 = 0.02 kg
String-length, l = 120 cm
Tension, T = 0.20 N

g= 9.81 m/s^2
Angle with pole = x degree
SO,
mg/T = cos(x) = 0.02*9.81/0.20

cos(x) = 0.981

x = 11.186 = 11.2 degree >===============< ANSWER