The efficiency of a pulley system can be increased by reducing the friction on the pulleys. Reducing friction allows for more of the input force to be converted into useful work, rather than being lost as heat energy due to friction.
A pulley system is operating at only 50% efficiency. How could the efficiency be increased? (1 point)
Responses
by having a second person pulling on the rope
by having a second person pulling on the rope
by adding more pulleys to the system
by adding more pulleys to the system
by decreasing the amount of weight being lifted
by decreasing the amount of weight being lifted
by reducing the friction on the pulleys
1 answer