Pulleys
that change:
-the direction and magnitude of the applied force;
- speed.
Exercises
The radius of pulley A is 30 cm while pulley B has a radius of 10 cm. Pulley A is connected to a motor and used to drive pulley B. For every clockwise turn of pulley A pulley B will:
The radius of pulley A is 30 cm while pulley B has a radius of 15 cm. Pulley B is connected to a motor and used to drive pulley A. Pulley B rotates with a force of 4N. For every clockwise turn of pulley B pulley A will:
The radius of pulley A is 30 cm, pulley C is 5cm while pulley B has a radius of 10 cm. Pulley A is connected to a motor and used to drive pulley B. Pulley A produces a force of 8N. Assuming no friction, for every clockwise turn of pulley A pulley C will:
Boilers were used to change water from liquid to gas. The energy for this conversion came from the burning of wood. Pulleys were used to transfer the energy around the many parts of a workshop.
If pulley B is half as big as pulley A it will
Pulley C is designed to
