[填空题]
An elevator in a tall building iszs mj7u olj vo)29q0k/ allowed to reach a gqbv43+0g) ; pw rr.axsrl1k zmaximum speed of 3.5 $\mathrm{~m} / \mathrm{s}$ going down. What must the tension be in the cable to stop this elevator over a distance of 2.6 m if the elevator has a mass of 1300 kg including occupants?
