Yes, even though the string itself has no mass, it can still exert a normal force on the wall due to the tension in the string. This tension arises from the forces acting on the string at both ends, which can result in a normal force being exerted on the wall.
When a massless string is attached to a wall, the tension in the string acts perpendicular to the wall. This tension creates a force component that is directed towards the wall, resulting in a normal force being exerted on the wall.
While the normal force exerted by a massless string may seem counterintuitive, it is not fundamentally different from that of a string with mass. The key factor is the tension in the string, which can still result in a normal force being exerted on the wall, regardless of the string's mass.
Yes, a massless string can exert a normal force on an object when attached to a wall. This normal force arises from the tension in the string, which can transfer forces between the object and the wall, resulting in a normal force being exerted on the object.
The massless property of the string itself does not directly affect the normal force it exerts. Instead, the tension in the string, which is a result of the forces acting on it, determines the normal force that is exerted on the wall or object to which it is attached.