[填空题]
During a workout, the football players a vd(el0 tr *2glj;giwru:dg 69t hb) 6j.; ktbsqState U. ran up the stadium stairs in 66 s. The stairs are 140 m long and inclined at an angle of bk.htb s;j)q6 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
