You have made an error in balancing moments . Which moment acts in which direction ?Priyadarshini said:
One acts clockwise from point B, I am not so sure about the other. Does it act anticlockwise from point A or does it act at the centre?Qwertywerty said:
It exerts a force in the direction of the rod.Qwertywerty said:
It should act to that of the rod.Qwertywerty said:
Thanks!Qwertywerty said:
A moment is a measure of the force applied to an object at a specific distance from a fixed point. In the case of a uniform rod attached to a point with a string, the moment would refer to the rotational force applied to the rod around the fixed point where the string is attached.
The moment of a force is calculated by multiplying the magnitude of the force by the distance from the point of rotation. In the case of a uniform rod attached to a point with a string, the force acting on the rod would be its weight, and the distance would be the length of the rod from the point of attachment to its center of mass.
The string serves as the fixed point of rotation for the rod and allows the force of gravity to act on the rod, creating a moment. Without the string, the rod would not be able to rotate around a fixed point and the concept of moments would not apply.
The length of the rod affects the moment by changing the distance from the point of rotation to the center of mass of the rod. The longer the rod, the greater the distance, and therefore the greater the moment created by the force of gravity.
No, a moment is created by a force acting on an object at a distance from a fixed point. Without the force of gravity, there would be no force acting on the rod and therefore no moment. However, other forces such as tension or friction could also create a moment on the rod.