A pulley system is operating at only 50% efficiency. How could the efficiency be increased? (1 point)

Question

Responses

by decreasing the amount of weight being lifted
by decreasing the amount of weight being lifted

by adding more pulleys to the system
by adding more pulleys to the system

by having a second person pulling on the rope
by having a second person pulling on the rope

by reducing the friction on the pulleys

Answer 1

by reducing the friction on the pulleys