[填空题]
A 17.0-kg monkey hang ;aqb 11:gq ktrjq015ed* muirs from a cxzj3i7axqd j63yt u9 8ord suspended from the ceiling of an elevator. The cord can withstand a tension of 220 N and breaks as the elevator a3u896ay 3i7qjzx tjxd ccelerates. What was the elevator’s minimum acceleration (magnitude and direction)? a =
