Could you describe the speaker’s recent activity

A．He’s never lonely, for he has worked in his own company.

B．He started a business after he had gained some experience.

C．He’s upset about his own business for three years.

D．He needed to spend three more years working with the IT firm.

如图所示，重10N的物体A和传送带一起向右沿水平方向做匀速直线运动。试画出物体A所受力的图示。