To calculate the mass in a horizontal pulley system, you will need to use the equation F=ma, where F is the net force acting on the system, m is the mass of the object, and a is the acceleration. In a horizontal pulley system, the net force is equal to the tension in the rope, so you can set F equal to the tension and solve for m.
Yes, friction can affect the mass in a horizontal pulley system. Friction is a force that acts in the opposite direction of the motion, so it can decrease the acceleration and therefore affect the mass calculated using the F=ma equation.
Static friction is the force that prevents an object from moving when a force is applied to it. In a horizontal pulley system, this would refer to the initial force needed to get the system in motion. Kinetic friction, on the other hand, is the force that acts on an object in motion. In a horizontal pulley system, this would refer to the force that must be overcome to maintain a constant acceleration.
The angle of the pulley can affect the mass in a horizontal pulley system by changing the direction of the net force acting on the system. This can affect the acceleration and therefore the mass calculated using the F=ma equation.
A common example of a real-life horizontal pulley system is a clothesline. The weight of the wet clothes pulls down on one side, while the tension in the rope pulls up on the other side. This allows the clothes to be hung and dried in a horizontal position. The mass in this system would be equal to the weight of the clothes, as this is the force acting on the system.