A 0.79 kg ball is connected by means of two ideal strings to a vertical, rotating rod. The strings are tied to the rod and are taut. The upper string is 29.0 cm long and has a tension of 29.7 N, and it makes an angle θ2 = 64.0° with the rod, while the lower string makes an angle θ1 = 53.0° with the rod. (a) What is the tension in the lower string?
b) What is the speed of the ball?
My physics optional extra work: This would be helpful so I can compare the solutions here as I do the work by myself.