如图所示,重为10N的物体以v在粗糙的水平面上向左运动,物体与桌面间的动摩擦因数为0.1,现在给物体施加水平向右的拉力F,其大小为20N,则物体受到的摩擦力和加速度大小是多少(g取10m/s2)---**Extraction Content:**
选择题
如图所示,重为10N的物体以v在粗糙的水平面上向左运动,物体与桌面间的动摩擦因数为0.1,现在给物体施加水平向右的拉力F,其大小为20N,则物体受到的摩擦力和加速度大小是 (g取10m/s²) ( )。
**Chart/Diagram Description:**
* Type: Simple force diagram.
* Main Elements:
* A rectangular block representing the object, placed on a horizontal surface with wavy lines indicating roughness.
* A velocity vector labeled 'v' pointing horizontally to the left, originating from the top of the block.
* A horizontal force vector labeled 'F' pointing to the right, originating from the right side of the block.
* A small arrow pointing left from the block's left side, likely representing the direction of motion or friction, but no label is given.
**Options:**
A | 1N, 20m/s²
B | 0, 21m/s²
C | 1N, 21m/s²
D | 1N, 19m/s²