Two blocks are connected by a lightweight string passing over a pulley, as shown in the figure below. The block with mass m1 = 17.5 kg on the incline plane accelerates up the plane with negligible friction. The block's acceleration is a = 1.60 m/s2, and the tension in the segment of string attached to this block is T1. The hanging block has a mass of m2 = 24.5 kg, and the tension in the string attached to it is T2. The radius of the pulley is r = 0.370 m and its moment of inertia is I. The incline plane makes an angle of = 37.0 with the horizontal. What is the tension force T1? (Give your answer, in N, to at least three significant figures.)