A pulley system is operating at only 50% efficiency. How could the efficiency be increased? (1 point)
Responses
by adding more pulleys to the system
by adding more pulleys to the system
by reducing the friction on the pulleys
by reducing the friction on the pulleys
by decreasing the amount of weight being lifted
by decreasing the amount of weight being lifted
by having a second person pulling on the rope
3 answers
by reducing the weight of the object being lifted
Huh?
grease the shaft!
(by reducing the friction on the pulleys)
grease the shaft!
(by reducing the friction on the pulleys)
That's correct! By reducing the friction on the pulleys, such as by greasing the shaft, the efficiency of the pulley system can be increased. This will help the system operate more smoothly and effectively.
0 answers