Pulley "A" is half the size of pulley "B" and rotates a full circle twice.

What is the minimum weight that can hang from pulley "A" to just balance the 10kg mass hanging from pulley "B"?

How many times will pulley "A" make a full rotation?

Will the 10kg mass hanging from pulley "B" rise or fall?

Pulley "A" is connected to the shaft of a motor. The motor can generate enough force to just lift a 8kg mass off the ground when the mass is tied around the shaft of the motor. The motor is connected to the pulley system pictured on the right through pulley "A". Pulley "A" rotates in the direction of the arrow.

Is the system of pulleys on the right sufficient to provide enough force to lift the 30kg mass off the ground?

Will the 30kg mass be lifted off the ground by the motor? Explain.