A pulley system has an efficiency of 78.0 per-
cent.
The acceleration of gravity is 9.81 m/s2 .
How much of the rope must be pulled in if
a force of 469 N is needed to lift a 52 kg desk
2.78 m?
1 answer
hzerhna
cent.
The acceleration of gravity is 9.81 m/s2 .
How much of the rope must be pulled in if
a force of 469 N is needed to lift a 52 kg desk
2.78 m?
1 answer
1 answer
1 answer
1 answer
2 answers