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

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