A body including a drive wheel and movable by rotation of the wheel； an electric motor to rotate the drive wheel； a controller to control the electric motor such that the rotational speed of the electric motor is a target rotational speed； an operation input device to receive an input of an amount of operation relating to movement speed of the body； a handle to be used by an operator to maneuver the body, the handle including grips to be grasped by the operator； and a grasping power detection sensor mounted on one of the grips to detect a grasping power with which the operator grasps the one of the grips. The controller determines a gain positively correlated with the grasping power, the amount of the operation as amplified by the gain, and the target rotational speed based on the amount of the operation as amplified by the gain.
