[单选题]
The coefficient of static and kmfkr 16-b )qjpnqb) iv):.r gcinetic fri3 m/yq*smw-1sxhau/ hctions between a 3.0-kg box and a desk are 0.40 and 0.30, respectsh1u*a3hsm y/xw/q-mively. What is the net force on the box when a 15 N horizontal force is applied to the box?
