[填空题]
During a workout, the football players at Sty.z-a e*i2me zo5pnezs f-rkow 7t30 2ate U. ran up th +et j;;y28f r z:b i0a+3xeyq7yhzyyxe stadium stairs in 66 s. The stairs are 140 m long and inclined at an ang 7e rh3x;+iy zq+0;jzyb8y:e t2fayyxle of 32 $^{\circ} $. If a typical player has a mass of 95 kg, estimate the average power output on the way up. Ignore friction and air resistance. W
