YES
Pulleys are used to change the direction of an applied force, transmit rotational motion, or realize a mechanical advantage in either a linear or rotational system of motion.
there are probably many ways. rack and pinion, even a roller or wheel on a board or flat surface. a string wound around a pulley even a crankshaft and con rod to some extent does.
Start the engine up. The engine will rotate the pulley on the alternator and charge the battery.
To suspend them away from any nearby surface, thus avoiding unwanted friction which would restrict the pulley's rotational motion.
force applied to a pulley
Transmission of Motion: Gears transmit motion and rotational force from one shaft to another. Speed and Torque Modification: Depending on the sizes and arrangement of the gears, they can be used to increase or decrease speed and torque. Directional Changes: Gears can change the direction of rotational motion from clockwise to counterclockwise or vice versa.
Because then you don't have to include those things in your equation when you're working out the answer.
a pulley
a pulley
A pulley, is a mechanism composed of a wheel on an axle that may have a groove between two flanges around its circumference. A rope, cable, belt, or chain usually runs over the wheel and inside the groove, if present. Pulleys are important and useful because its used to change the direction of an applied force, transmit rotational motion, or realize a mechanical advantage.
A crank pulley also known as a crankshaft pulley is an essential part of a car. It transmits the mechanical power and torque, or the force of motion, through the pulley system to additional car elements.
A fixed pulley is different from a movable pulley because a movable pulley has one end of the rope attached to it fixed on an unmoving object. The pulley is free to move with the rope. You pull the other end of the rope. Also, a movable pulley multiplies the applied force (effort force) and therefore has more mechanical advantage. A fixed pulley is attached to something that doesn't move, while one end of the rope is holding the weight, while the other is for pulling.A fixed pulley confers no mechanical advantage, but will convert motion in one direction into another direction.A movable pulley system, if the pulleys change their distance from each other, will confer a mechanical advantage.