What was the tension T in the string?

Question

An object of mass m=0.38 kg attached to a string is moving uniformly in a vertical circular path of radius 1.20 m. Recorded time t=0.34 s while it moves 1.28 radians. What was the tension T in the string? 

Answer 1

Note that no specific angle was mentioned and "uniform motion" was claimed. This indicates to me that the objects weight should be ignored and only the centripetal force component is to be considered.

The angular velocity is 1.28/.34= 3.76 rad/sec thus the tangential velocity = 1.2*3.76= 4.51m/s.

The F_centripetal = mv2/r = .38*4.51²/1.2= 6.45 Newton = Tension