本题目来源于试卷: Physics Unit9: Static Equilibrium, Elasticity and Fracture，类别为 通用国际物理
[单选题]
Suppose that an 80-kg person walking on crutches supports a ufx/ mzrd+ y08q:v )ut.pp+c sw5x:ynll his we;uymue- 9gbfut -9n3+uj;m1fpa4dw g ight on the two crutch tiu ugwpb4ymnuf+duae; j- 9 tf-93mg;1 ps, each of which is circular with a diameter of 4.0 cm. What pressure is exerted on the floor?
A. $78 \; kPa$
B. $156 \; kPa$
C. $312 \; kPa$
D. $624 \; kPa$
参考答案: C
本题详细解析:
暂无
| 
