[填空题]
You know your mass is 65 kf 2.xkxy- kyimtb ,208paoys 8g, but *x3k1xqcb. k am8gh)qwhen you stand on a bathroom scale in an elevator, it says your mass is hmx k )8cqagkq3*1bx. 82 kg. What is the acceleration of the elevator, and in which direction?
