[填空题]
Three mountain climbers who are roped k6ydwbqt41z 4 together are ascend 0148wjaofczkm48w m cing an ice field inclined at m mw 4zjkaw804c1oc8f 21.0$^{\circ}$ to the horizontal. The last climber slips, pulling the second climber off his feet. The first climber is able to hold them both. If each climber has a mass of 75 kg , calculate the tension in each of the two sections of rope between the three climbers. Ignore friction between the ice and the fallen climbers.
