[填空题]
A 17.0-kg monkey hangcp 1(0 ww4ovc 2 *mvd7jnokvakn+0z5o z,(wg: dzc5 v kmh)ic wy.n2i3s from a cord suspended from the ceiling of an elevator. The cozind 2(, :k)mwcgv.iz c3 h5ywrd can withstand a tension of 220 N and breaks as the elevator accelerates. What was the elevator’s minimum acceleration (magnitude and direction)? a =
